You are tasked with preparing a critical financial report for an urgent board meeting, but a key data source becomes unexpectedly unavailable. How do you prioritize tasks, communicate the issue, and ensure the report is still delivered with the most accurate information possible under extreme time pressure?

Employ the CIRCLES method for problem-solving. Comprehend the unavailable data's impact and identify critical dependencies. Identify alternative data sources or proxies. Report the issue immediately to stakeholders, outlining impact and proposed solutions. Cut scope by prioritizing essential report sections. Lead with available, verified data, clearly noting gaps and assumptions. Execute data gathering from alternatives. Summarize findings, highlighting limitations and next steps for full data acquisition. This ensures transparency, manages expectations, and delivers maximum value under constraints.

Under extreme time pressure with a critical data source unavailable, I'd immediately implement a structured approach. First, I'd assess the specific data points missing and their impact on the report's key conclusions. Concurrently, I'd identify potential alternative data sources or reliable proxies, even if less granular. Communication is paramount: I'd inform stakeholders (e.g., board liaison, CFO) immediately about the issue, its potential impact, and my proposed mitigation strategy, managing expectations proactively. I'd then prioritize report sections, focusing on delivering the most critical insights with the available, verified data. Any assumptions made due to missing data would be clearly documented and highlighted. My goal is to deliver a robust, albeit potentially caveated, report on time, ensuring transparency and providing actionable insights based on the best available information, while outlining a clear plan for full data acquisition post-deadline.