Interviewer-led cases (McKinsey) guide you through a series of questions; candidate-led cases (BCG, Bain) require you to drive the entire analysis yourself. The same problem-solving skills apply, but the pacing and communication style differ significantly.
| Aspect | Interviewer-Led | Candidate-Led |
|---|---|---|
| Primary Firm | McKinsey | BCG, Bain |
| Who Drives | Interviewer sets the agenda | Candidate sets the agenda |
| Structure | Pre-defined questions in sequence | Open-ended, you choose what to explore |
| Framework | Less emphasis on upfront framework | Must present framework at start |
| Data | Given exhibits per question | Request data as needed |
| Key Skill | Answering precisely what's asked | Knowing what questions to ask |
The interviewer controls the flow. They'll ask specific questions like "What factors would you consider?" or "Look at this exhibit—what do you notice?" You respond, then they move to the next question.
After the case prompt, you're in the driver's seat. Present your framework, then systematically work through it. The interviewer responds to your questions and may redirect if needed, but you control the pace.
| Firm | Primary Style | Notes |
|---|---|---|
| McKinsey | Interviewer-led | Very structured; exhibits per question |
| BCG | Candidate-led | Framework critical; some offices more guided |
| Bain | Candidate-led | More conversational; expects business intuition |
| Deloitte | Hybrid | Varies by practice; often more guided |
| Strategy& | Candidate-led | Similar to BCG; emphasis on creativity |
Mostly yes. Core skills (structuring, math, synthesis) are identical. The main difference is practicing framework presentation for candidate-led cases and exhibit interpretation for interviewer-led ones.
It depends on your strengths. Candidate-led is harder if you struggle with ambiguity or driving conversations. Interviewer-led is harder if you tend to over-explain or miss the specific question asked.
Follow their lead. If they start asking specific questions in a candidate-led case, answer directly instead of trying to redirect. Interviewers sometimes guide struggling candidates—take the help.
CaseStar's AI interviewer adapts to both McKinsey and BCG/Bain formats, so you're ready for any firm.
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