After 15 years in the industry, I am still learning. I still learn from projects and I still learn from cases.
If after 70 cases you think you have learned all you have to learn and nothing surprises you anymore… well, it just feels that you must be doing something fundamentally wrong.
Coming up with a really objective-driven structure is not easy. Understanding what is the most efficient way to do a market sizing is not easy. Understanding and considering the nuances of an industry is not easy. Speculating about the root causes or the drivers of any situation is not easy.
I would've understood if the question was if 70 was enough, if you should already feel comfortable with that number (the answer is: don't know without giving you a case). But the wording suggests you don't know where you can improve. Which you should. Particularly after doing so many cases…
- Are you using always the same frameworks? Or a buckets approach? Are you MECE?
- Can you do market sizing: top down, bottom up, top down and bottom up simultaneously?
- Can you read exhibits efficiently and always communicate insights in a way that help movign forward towards the case objective?
- Is your communication clear?
- Are you able to effectively clarify context and goals, and understand the nuances of that context and goals?
- Are you able to effectively engage the interviewer, creating a positive interaction?
- Are you able to effectively think about industries of which you know nothing about? Or where the objective is a bit atypical?
If you don't know where you need to improve… do one more case with an experienced partner, that can help you identify improving areas.