With one month, start by learning the case format and the core skills before trying to maximize the number of full cases you complete.

Use the first phase to build foundations in structuring, case math, charts, brainstorming, and synthesis. Then shift toward full live cases so you can combine those skills under interview pressure.

As an experienced hire, also practice explaining your career story and translating prior experience into consulting-relevant impact. Do not let case practice crowd out the fit side of the interview.

A simple plan is foundations first, then repeated full cases with targeted review after each one. Track the specific skill that caused each miss rather than just counting cases.

For PEI, the follow-up questions were what exposed whether I really knew the story in enough detail.

I would definitely practice this live. It feels different when someone is waiting for your answer.