Tell me about a time you failed or made a mistake in a team project. How did you handle it, and what did you learn?

Situation

During a group project in my operations management class, we ran a simulated supply chain over eight weeks. In week four, I miscalculated the inventory safety stock for our main product line because I assumed steady demand without checking for seasonal spikes.

Task

I had to fix the error before the next simulation round or risk a stockout that could tank our team's grade. I also needed to regain my team's trust, as they relied on my calculations.

Action

I immediately informed my team without blaming external factors. I said, 'I made a mistake in the demand forecast; here's how I plan to fix it.' I recalculated using a moving average with seasonal adjustments, proposed a revised procurement plan with a buffer, and created a one-page post-mortem checklist to prevent similar oversights in future rounds.

Result

We avoided a stockout in the remaining rounds, and while we didn't win the simulation, my team appreciated my honesty. I was later elected project lead for a bigger integrative assignment because they trusted me to own errors and correct them quickly.