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Brainstorming in a Case Interview: Insider Guide (2026)

Brainstorming is where I see many candidates lose their consulting offers. In moments where the interviewer asks question such as, “What are all the reasons this plant might be underperforming?” and the candidate starts rattling off disconnected ideas without structure. That one moment decides a lot. After 5 years at McKinsey and 700+ candidates coached…
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