Why Consulting?
They're checking if you genuinely understand the day-to-day of consulting and have real reasons, not buzzwords. Give 3 specific motivations (variety, problem-solving, impact/people) and anchor each to a real experience of yours.
Definition
'Why Consulting?' is a fit/motivation question that every MBB and boutique interviewer asks to test whether you actually understand the job and whether your reasons are authentic and specific to consulting (not just 'prestige' or 'I'm not sure what else to do'). The headline answer: you want consulting because it offers variety of problems and industries, rapid skill-building through structured problem-solving, exposure to senior decision-makers early, and the chance to drive real change across businesses — three or four concrete reasons backed by a personal story.
What the Interviewer Is Actually Testing
Consulting firms recruit broadly and have huge attrition, so they screen hard for genuine motivation. 'Why Consulting?' tests three things: (1) Do you understand what consultants actually do (advise clients on strategic and operational problems, work in teams, travel, structure ambiguous problems)? (2) Are your reasons specific to consulting rather than generic ('I like working with smart people' applies to any job)? (3) Is there a credible thread connecting your past experiences to this choice? A weak answer signals you're applying because everyone else is, which predicts early exit.
The 3-Pillar Answer Structure
Build your answer around three pillars, each tied to a real experience. Pillar 1 — Variety & Steep Learning Curve: consulting exposes you to many industries and functions in a short time, accelerating how fast you build a generalist toolkit. Pillar 2 — Structured Problem-Solving: you're drawn to breaking ambiguous, high-stakes problems into testable hypotheses (reference your interest in frameworks like the profitability framework or issue trees). Pillar 3 — Impact & People: you want to influence senior leaders' decisions and work alongside sharp, collaborative teams. Open with a one-line thesis, deliver the three pillars with evidence, and close by linking to why THIS firm. Keep it under 90 seconds.
Why THIS Firm (the second half they expect)
'Why Consulting?' almost always pairs with 'Why our firm?' Have one or two firm-specific reasons ready: a practice area (e.g., McKinsey's implementation/QuantumBlack, Bain's PE due-diligence and Results Delivery, BCG's digital ventures), a conversation with someone you networked with (name them), or a case study/office culture point. Generic praise ('great brand, smart people') reads as filler. Tie the firm reason back to your three pillars so the whole answer feels coherent rather than two stapled-together responses.
Common Follow-Ups
Expect: 'Why not banking / industry / a startup?' (have a crisp contrast — consulting offers breadth of problems vs. banking's depth in one discipline, and structured mentorship vs. a startup's sink-or-swim). 'Where do you see yourself in 5 years?' (it's fine to say you're keeping options open but want to build a problem-solving foundation first). 'What's the hardest part of consulting and are you ready for it?' (acknowledge travel, ambiguity, and demanding clients honestly — maturity scores points). Never bad-mouth the alternatives; just articulate the trade-off you're choosing.
Worked Example — With Real Numbers
'I want to go into consulting for three reasons. First, breadth — in my internship at a single CPG company I spent four months on one pricing problem, and I realized I learn fastest when I'm jumping between problems and industries, which is the core of the job. Second, I'm genuinely energized by structuring ambiguous problems; in my school's consulting club I led a project for a local clinic where we had no clean data, and the part I loved most was building an issue tree to figure out where their patient drop-off was actually coming from. Third, impact and people — I want to be in the room where senior leaders make decisions, and consulting puts you there years earlier than most paths. As for Bain specifically, I spoke with two associate consultants from the Chicago office about the PE due-diligence work, and that intersection of strategy and investing is exactly where I want to start.'
Key Takeaways
Give 3 specific, consulting-unique reasons (variety, structured problem-solving, impact/people) — not generic 'smart people' filler
Anchor every reason to a real experience of yours so it's credible, not aspirational
Always have a firm-specific reason ready — 'Why consulting?' and 'Why this firm?' are one combined answer
Be ready to contrast consulting vs. banking, industry, and startups without bad-mouthing any
Keep it under 90 seconds and end with a forward-looking link to the firm
Common Mistakes in Interviews
Naming only 'prestige,' 'exit options,' or 'smart people' — none are specific to consulting
Showing you don't understand the job (never mentioning client work, teams, travel, or ambiguity)
Giving the same answer for 'Why consulting?' and 'Why this firm?' with the firm name swapped in
Listing reasons with zero evidence — claims without a personal story sound rehearsed
Trashing banking or industry to elevate consulting, which reads as defensive
How Interviewers Test This
Deliver it like a tight three-bullet pitch, not an essay: thesis sentence, three evidence-backed reasons, firm hook. Practice it out loud until it's 75-90 seconds and feels conversational. Tailor the firm half every single time — interviewers can instantly tell a templated answer from a researched one.
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