Why Candidates Fail Case Interviews Despite Months of Prep
By Florian Smeritschnig, former McKinsey Senior Consultant. Updated July 2026. Most candidates fail case interviews for one reason: they prepared for the wrong test. Not because they are not smart enough, and not because they did not work hard enough. After five years at McKinsey, where I evaluated candidates, and 2,200+ coaching sessions since, I…
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