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Write a Client-Facing Email Explaining a Significant Project Delay

Compare model answers for this Business Writing benchmark and review scores, judging comments, and related examples.

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Contents

Task Overview

Benchmark Genres

Business Writing

Task Creator Model

Answering Models

Judge Models

Task Prompt

You are a project manager at a mid-sized software consulting firm. Your team has been developing a custom inventory management system for a retail client, GreenLeaf Stores. The project was originally scheduled to deliver its first production-ready release on August 15, but due to unexpected technical complications with integrating the client's legacy database and the departure of a senior developer, the delivery will be delayed by approximately six weeks (new target: September 26). Your client contact is Dana Mora...

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You are a project manager at a mid-sized software consulting firm. Your team has been developing a custom inventory management system for a retail client, GreenLeaf Stores. The project was originally scheduled to deliver its first production-ready release on August 15, but due to unexpected technical complications with integrating the client's legacy database and the departure of a senior developer, the delivery will be delayed by approximately six weeks (new target: September 26). Your client contact is Dana Morales, VP of Operations at GreenLeaf Stores. Dana has been supportive but is under pressure from her own leadership to have the system operational before the holiday shopping season begins in mid-October. Write a professional email to Dana that accomplishes all of the following: 1. Clearly communicates the delay and the new expected delivery date. 2. Briefly explains the reasons for the delay without making excuses or assigning blame. 3. Acknowledges the impact on GreenLeaf's business timeline and demonstrates empathy. 4. Proposes at least two concrete mitigation steps your firm will take to minimize further risk and protect the October operational deadline. 5. Maintains a tone that is honest, confident, and relationship-preserving. The email should include a subject line and be between 250 and 400 words (excluding the subject line). Do not use placeholder text such as "[insert name here]." Write the complete, ready-to-send email.

Judging Policy

A strong response should be a complete, realistic business email that reads as ready to send. Judges should evaluate the following dimensions: (1) Clarity and directness — the delay and new date should be stated early and unambiguously, not buried. (2) Professionalism and tone — the email should strike a balance between honesty and confidence, avoiding excessive apologizing, defensiveness, or blame-shifting. (3) Empathy and client awareness — the response should explicitly acknowledge the holiday-season pressure an...

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A strong response should be a complete, realistic business email that reads as ready to send. Judges should evaluate the following dimensions: (1) Clarity and directness — the delay and new date should be stated early and unambiguously, not buried. (2) Professionalism and tone — the email should strike a balance between honesty and confidence, avoiding excessive apologizing, defensiveness, or blame-shifting. (3) Empathy and client awareness — the response should explicitly acknowledge the holiday-season pressure and the impact on GreenLeaf's operations. (4) Actionable mitigation — at least two specific, credible steps should be proposed (not vague promises), showing proactive problem-solving. (5) Structure and formatting — the email should have a clear subject line, logical paragraph flow, and appropriate greeting and sign-off. (6) Length compliance — the body should fall within the 250–400 word range. (7) Business appropriateness — language, register, and conventions should match a real client-facing professional email. Responses that are generic, overly verbose, or fail to address all five requirements in the prompt should be rated lower.

Answers

Subject: Updated Delivery Timeline for Inventory Management System (Target: September 26) Hi Dana, I’m writing to share an important update on the first production-ready release of the inventory management system. Based on the most current integration and staffing outlook, we will not be able to meet the original August 15 delivery date. Our revised target for the production-ready release is September 26 (approximately a six-week shift). This change is driven by two factors we uncovered while moving deeper into implementation: (1) the integration with GreenLeaf’s legacy database has presented unexpected comple...

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Subject: Updated Delivery Timeline for Inventory Management System (Target: September 26) Hi Dana, I’m writing to share an important update on the first production-ready release of the inventory management system. Based on the most current integration and staffing outlook, we will not be able to meet the original August 15 delivery date. Our revised target for the production-ready release is September 26 (approximately a six-week shift). This change is driven by two factors we uncovered while moving deeper into implementation: (1) the integration with GreenLeaf’s legacy database has presented unexpected complexity that requires additional engineering and testing to ensure accuracy, performance, and data integrity; and (2) the departure of a senior developer reduced capacity during a critical build phase. We’ve adjusted our plan accordingly and are focused on delivering a stable release rather than rushing risk into production. I understand this timing matters—especially with your leadership expecting the system to be operational ahead of the mid-October holiday ramp. I’m sorry for the disruption this creates for your internal planning, and I appreciate the support you and your team have provided throughout the project. To minimize further risk and protect your October operational deadline, we are taking the following steps immediately: 1) Integration “war room” and tighter cadence: We’re standing up a dedicated integration squad with daily checkpoints, expanded automated tests, and weekly joint demos focused specifically on legacy database workflows and performance. 2) Capacity and continuity reinforcement: We are adding an experienced engineer from another project and assigning a technical lead to oversee code quality, reviews, and release readiness, ensuring continuity despite the staffing change. Additionally, we will deliver a prioritized cut of must-have functionality first (with clearly defined deferrals) so GreenLeaf can begin validation and training as early as possible. If you’re available, I’d like to schedule a 30-minute call this week to walk through the updated plan, key risks, and the milestones between now and September 26. Best regards, [Your Name] Project Manager [Your Company] [Phone] | [Email]

Result

#1 | Winner

Winning Votes

3 / 3

Average Score

85

Total Score

92

Overall Comments

Answer A is a highly professional and effective client-facing email. It excels in clearly communicating the delay and new date, providing concise reasons, and demonstrating strong empathy for the client's situation, particularly regarding the holiday season deadline. Its proposed mitigation steps are concrete, actionable, and directly address the root causes of the delay, instilling confidence. The tone is perfectly balanced, being honest, confident, and relationship-preserving. The only minor drawback is being slightly under the requested word count.

View Score Details

Appropriateness

Weight 25%
90

Answer A is highly appropriate for a client-facing email, covering all required points professionally. The only minor issue is being slightly under the requested word count (220 vs 250-400).

Clarity

Weight 20%
95

Answer A is exceptionally clear. The delay and new date are stated immediately and unambiguously in the first paragraph. Reasons are concise and easy to understand.

Structure

Weight 20%
90

Answer A has an excellent structure with a clear, informative subject line, logical paragraph flow, and a professional closing that includes a call to action.

Actionability

Weight 20%
95

Answer A provides highly concrete and actionable mitigation steps, directly addressing both the technical integration and staffing issues with specific plans like a 'war room' and adding an experienced engineer. It also includes a third bonus step.

Tone

Weight 15%
90

Answer A maintains an excellent tone that is honest, confident, and empathetic without being overly apologetic. It acknowledges disruption while focusing on a stable, quality delivery.

Total Score

76

Overall Comments

Answer A is a strong, realistic client-facing email that hits all five prompt requirements effectively. The delay and new date are stated clearly in the first paragraph and even in the subject line. The reasons are explained concisely without blame-shifting. Empathy is demonstrated by explicitly referencing the mid-October holiday ramp and acknowledging disruption to internal planning. The mitigation steps are specific and credible (dedicated integration squad with daily checkpoints, adding an experienced engineer, prioritized functionality cut). The tone is confident, honest, and relationship-preserving without excessive apologizing. Structure is clean with a clear subject line, logical flow, and appropriate sign-off. The use of placeholder brackets for name/company/phone is a minor issue but standard in this context. Word count appears to be within the 250-400 range.

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Appropriateness

Weight 25%
75

The email reads as a realistic, ready-to-send client communication. The subject line includes the new date, which is a smart business practice. The language register is appropriate throughout. Minor deduction for placeholder brackets in the signature, though this is a common convention. The additional offer of a prioritized functionality cut and a call shows strong business awareness.

Clarity

Weight 20%
75

The delay and new date are stated clearly in the first paragraph and reinforced in the subject line. The reasons are enumerated concisely. The mitigation steps are clearly numbered and specific. The call-to-action at the end is direct and time-bound ('this week').

Structure

Weight 20%
75

Excellent structure with a clear subject line, logical paragraph progression (update → reasons → empathy → mitigation → next steps), numbered mitigation items, and an appropriate closing. The email flows naturally and each paragraph serves a distinct purpose.

Actionability

Weight 20%
80

Three concrete mitigation steps are proposed: (1) a dedicated integration squad with daily checkpoints and automated tests, (2) adding an experienced engineer and assigning a technical lead for code quality, and (3) delivering a prioritized cut of must-have functionality for early validation. All are specific, credible, and directly address the risks. The call request is also time-bound.

Tone

Weight 15%
75

The tone strikes a strong balance between honesty and confidence. The apology is measured ('I'm sorry for the disruption') without being excessive. The language conveys competence and proactive problem-solving. Phrases like 'focused on delivering a stable release rather than rushing risk into production' show confidence and good judgment.

Judge Models OpenAI GPT-5.4

Total Score

86

Overall Comments

Answer A is a strong, client-ready email that directly states the delay and revised date early, gives a balanced explanation without sounding defensive, and shows clear awareness of GreenLeaf’s holiday deadline. Its mitigation plan is specific and credible, including a dedicated integration effort, added staffing, tighter QA cadence, and a phased must-have release. The main weakness is that it includes placeholder sign-off details, which slightly reduces readiness to send.

View Score Details

Appropriateness

Weight 25%
81

Professionally framed for a client, tailored to the project context, and aligned with business-email conventions. It addresses the client’s operational concerns well, though placeholder sender details keep it from being fully ready to send.

Clarity

Weight 20%
88

States the missed August 15 date and new September 26 target early and unambiguously. The reasons for delay and the implications are explained cleanly without burying key information.

Structure

Weight 20%
87

Well organized with a specific subject line, logical paragraph progression, and a scannable mitigation section using numbered points. The structure supports quick client comprehension.

Actionability

Weight 20%
89

Provides multiple concrete, credible mitigation actions: a dedicated integration squad, daily checkpoints, expanded automated testing, weekly demos, additional staffing, technical oversight, and a phased must-have release. These steps directly address schedule and operational risk.

Tone

Weight 15%
84

Honest, steady, and relationship-preserving, with empathy for the client’s timeline pressure while still sounding controlled and accountable. It avoids blame and excessive apology.

Subject: Important Update Regarding the GreenLeaf Inventory Management System Project Dear Dana, I am writing to provide you with an important update on the progress of your new inventory management system. While our team has been making steady progress on the core functionalities, we have encountered some challenges that will impact our original delivery schedule. I want to be transparent with you: we now project that the production-ready release will be delivered on September 26, a six-week delay from the original August 15 date. This shift is due to two unforeseen issues. First, we faced more complex techn...

Show Full Answer

Subject: Important Update Regarding the GreenLeaf Inventory Management System Project Dear Dana, I am writing to provide you with an important update on the progress of your new inventory management system. While our team has been making steady progress on the core functionalities, we have encountered some challenges that will impact our original delivery schedule. I want to be transparent with you: we now project that the production-ready release will be delivered on September 26, a six-week delay from the original August 15 date. This shift is due to two unforeseen issues. First, we faced more complex technical hurdles than anticipated while integrating with your legacy database system. Second, one of our senior developers, who was a key part of the project, has unexpectedly left our firm. We fully understand the critical importance of having this system operational before the holiday shopping season begins in mid-October. We sincerely apologize for the inconvenience and pressure this new timeline creates for you and the GreenLeaf team. Please be assured that meeting your October operational deadline remains our highest priority. To mitigate any further risk and ensure we meet this revised target, we have already taken several concrete steps. First, we have assigned another of our top senior developers, who has extensive experience in complex database integrations, to the project effective immediately. Second, to increase transparency and keep the project on its accelerated path, I will be providing you with a detailed weekly progress report and have scheduled more frequent internal check-ins with the development team. Our commitment to delivering a high-quality system that meets GreenLeaf's needs is unwavering. I would like to schedule a brief call with you early next week to walk you through our revised project plan in detail and answer any questions you may have. Thank you for your continued partnership and understanding. Best regards, The Project Manager

Result

#2

Winning Votes

0 / 3

Average Score

69

Total Score

73

Overall Comments

Answer B is a professional and generally clear email that addresses most of the prompt's requirements. It communicates the delay and reasons effectively and shows empathy for the client's deadline. However, its mitigation steps are less robust and actionable compared to Answer A, with one of the two primary steps focusing more on communication than direct problem-solving. The opening is slightly less direct, and the word count is significantly below the requested range. The sign-off is also a bit generic.

View Score Details

Appropriateness

Weight 25%
75

Answer B is appropriate but less robust than A. The mitigation steps are weaker, the sign-off is generic, and the word count is significantly below the requested range (190 vs 250-400).

Clarity

Weight 20%
80

Answer B is clear, but the delay is introduced in the second paragraph after a brief preamble, making it slightly less direct than Answer A.

Structure

Weight 20%
75

Answer B has a good structure, but its subject line is less specific, and the closing 'The Project Manager' is less personal and professional than a named sign-off.

Actionability

Weight 20%
60

Answer B's mitigation steps are weaker. While assigning a senior developer is good, the second step (weekly progress reports and internal check-ins) is more about communication and transparency than direct problem-solving for the underlying technical/staffing issues causing the delay.

Tone

Weight 15%
75

Answer B's tone is professional and empathetic, but the phrase 'We sincerely apologize' is a bit stronger than necessary and could slightly undermine the desired confident stance, though it remains appropriate.

Total Score

61

Overall Comments

Answer B is a competent professional email that addresses all five prompt requirements. The delay is communicated clearly, though it takes slightly longer to get to the new date (second paragraph rather than first). The reasons are explained without blame. Empathy is shown with explicit mention of the holiday season deadline. However, the mitigation steps are somewhat less specific and less compelling—assigning a senior developer is good, but weekly progress reports are more of a communication measure than a concrete risk-mitigation step. The tone is professional but leans toward overly apologetic in places ("sincerely apologize," "unwavering commitment"). The sign-off "The Project Manager" is unrealistic for a ready-to-send email. The email also opens with somewhat filler language ("making steady progress on core functionalities") before getting to the key message.

View Score Details

Appropriateness

Weight 25%
60

The email is generally appropriate but has some weaknesses. The sign-off 'The Project Manager' is unrealistic for a ready-to-send email. The opening paragraph contains filler language before getting to the point. Phrases like 'unwavering commitment' feel slightly corporate-generic. The subject line is functional but less informative than it could be (no new date included).

Clarity

Weight 20%
65

The delay is communicated clearly but takes until the second paragraph to state the new date. The opening paragraph is somewhat indirect, mentioning 'challenges' before specifying them. The mitigation steps are clear but less precisely defined than Answer A's.

Structure

Weight 20%
65

Good overall structure with clear paragraphs and logical flow. However, the opening paragraph is somewhat redundant before getting to the key message. The mitigation steps are embedded in a single paragraph rather than clearly delineated, making them slightly less scannable.

Actionability

Weight 20%
55

Two mitigation steps are proposed: (1) assigning a senior developer with database integration experience, and (2) weekly progress reports with more frequent internal check-ins. The first is concrete and credible. The second is more of a communication/transparency measure than a true risk-mitigation step—it doesn't directly reduce the chance of further delay. No mention of prioritizing functionality or accelerating validation.

Tone

Weight 15%
60

The tone is professional but leans toward overly apologetic and deferential. 'Sincerely apologize,' 'please be assured,' and 'unwavering commitment' are somewhat heavy-handed. The phrase 'making steady progress' at the start feels like it's softening the blow too much before delivering the bad news, which can undermine trust. The overall impression is slightly less confident than Answer A.

Judge Models OpenAI GPT-5.4

Total Score

73

Overall Comments

Answer B is professional and clear about the revised delivery date and reasons for the delay, and it acknowledges the client’s holiday-season pressure appropriately. However, its mitigation steps are less robust and less tailored to protecting the October operational deadline, relying more on reporting and internal check-ins than on concrete delivery-risk reduction. It is also less fully ready to send because the sign-off is generic rather than personalized.

View Score Details

Appropriateness

Weight 25%
68

Generally appropriate and professional, but slightly more generic in phrasing and less tailored in the close. The generic signature and more templated feel reduce realism for a client-facing final draft.

Clarity

Weight 20%
82

Clearly communicates the delay and revised date in straightforward language. It is easy to follow, though the opening takes slightly longer to reach the key message than Answer A.

Structure

Weight 20%
74

Has a clear subject line, greeting, body flow, and closing, but the structure is more standard and less effectively segmented for fast review. The mitigation section is less distinct and the closing signature is weak.

Actionability

Weight 20%
66

Includes some concrete actions, such as assigning a senior developer and sending weekly progress reports, but the plan is less comprehensive and less directly tied to protecting the October go-live. Reporting and internal check-ins are helpful but not as strong as execution-focused mitigations.

Tone

Weight 15%
78

Respectful and transparent, with good acknowledgment of pressure on the client. However, phrases like 'sincerely apologize for the inconvenience and pressure' lean slightly more conventional and less confidently solution-oriented than Answer A.

Comparison Summary

Final rank order is determined by judge-wise rank aggregation (average rank + Borda tie-break). Average score is shown for reference.

Judges: 3

Winning Votes

3 / 3

Average Score

85
View this answer

Winning Votes

0 / 3

Average Score

69
View this answer

Judging Results

Judge Models OpenAI GPT-5.4

Why This Side Won

Answer A wins because it performs better on the most important weighted dimensions, especially appropriateness, structure, and actionability. Both emails communicate the delay clearly and maintain a professional tone, but Answer A offers a more specific, operationally credible recovery plan tied to GreenLeaf’s October deadline, and its overall flow reads more like a realistic client-management email. Although both responses have minor readiness issues in the signature, Answer A’s stronger mitigation plan and better business framing give it the higher weighted overall result.

Why This Side Won

Answer A wins because it scores higher on the most heavily weighted criteria. It is more appropriate as a ready-to-send business email with more specific and credible mitigation steps, states the delay more directly and earlier, and maintains a more confident tone without excessive apologizing. The mitigation proposals in A (integration war room, capacity reinforcement, prioritized functionality cut) are more concrete and actionable than B's (assigning a developer, weekly reports). A's structure is also tighter, with the key information front-loaded in both the subject line and opening paragraph.

Why This Side Won

Answer A wins due to its superior actionability, clarity, and overall professionalism. It provides significantly more concrete and effective mitigation steps that directly address the technical and staffing challenges, instilling greater confidence in the client. Its communication of the delay is more direct, and its tone strikes a better balance between empathy and confidence. While slightly under the word count, its content quality and adherence to the core requirements, especially regarding actionable solutions, are much stronger than Answer B.

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