Hi,
Assuming this is a new case for you, not a repeated one, usually it meant the following:
- You force fit a framework into the case and didn’t customize it enough. Case interviews these days are more and more flexible. Off the shelf frameworks won’t fit perfectly and needs significant customization.
- Answers to brainstorming questions were not “out-of-the-box” enough. This is less likely compared to the first possibility though
- Least likely, but possible comments for some interviewers: your composure or way you communicated came across you’ve done this case before. Meaning “it was too perfect to be the first time you came across this case”. Consulting interviews are conversational, and I always encourage candidates to take it as an opportunity to build a relationship with the interviewer.
Feel free to reach out for a chat if you have further questions! It’s best to talk through these to know which scenario is more likely and find the targeted resolution.
Best of luck!
Han