Cracking the consulting fit interview

Candidates over-index on cases and neglect the fit interview — then wonder why they didn't convert. At the top firms, fit is scored just as seriously as the case.

What it's called, and where it sits

At McKinsey it's a dedicated Personal Experience Interview (PEI), scored separately from the case. At BCG and Bain, fit questions are usually woven into the same session as the case. Either way, you'll be asked to go deep on a small number of real personal stories.

The themes they probe

Most fit questions map to a few dimensions:

• Personal leadership — a time you led others through difficulty
• Driving impact / achievement — a result you're genuinely proud of
• Influence / persuasion — convincing people who didn't initially agree

Prepare two stories per theme, in depth

The mistake is preparing many shallow stories. Instead, choose two genuinely strong examples per theme and know them cold: the stakes, your specific actions, the friction, the outcome, and what you learned.

Interviewers will push — "why did you do that and not the alternative?", "how did the other person react?". Surface-level stories collapse under follow-up; lived ones don't.

Make it personal, not polished

The point of the PEI isn't a flawless narrative — it's evidence of how you actually behave. Use real detail, admit the hard parts, and let your judgement show. That's far more convincing than a rehearsed success story with no texture.