1. Especially at MBB where cases can be complex, you can absolutely present an initial structure (profitability in your example) then pivot and create a new framework mid-way through the case once you identified the problem and now need to find the optimal resolution for example

2. Yes! Brainstorming in particular is a trick, don't fall for it and start blurting out possibilities as they coem to mind. Always ask for a little time and build a framework so you can organize your thoughts and showcase your structuring skills. 30 seconds to 1 minute is probably ok. I don't mind applicants asking for time to think once or twice through the case, better doing this than thinking on the fly and missing an obviously connection or getting lost

Hi,

1) Your structure is not limited to the initial structure. You should be constantly structuring during the case, drilling down to solve the problem and find the root cause. So yes, build another structure

2) Always take:

• 1-2 min for initial structure. But the faster the better. 1.5 looks fine
• Up to 1 minute for the conclusion. Again, the faster the better. But always take the time! Your conclusion should be very well structured and your arguments should include supporting numbers and you need time to collect them
• 30 sec - 1 min for questions on creativity. It's really hard to be creative "On-the-go"

It's a bit more tricky with taking time during the case:

• It's not OK to take 30 seconds and then come up with just 1 or 2 ideas. And then if the ideas are not correct to keep the science again. This is called "Guessing"
• It's OK to take 30 seconds, draw a new structure (or continuation of your previous structure) and come up with a structured way to approach the problem further.

Best,

Vlad

(editiert)