Consulting interviews are famous for the case interview, and for good reason — it's designed specifically to simulate the actual job: structuring an ambiguous problem, working with incomplete data, and communicating a recommendation clearly under time pressure.
Diving straight into numbers without laying out a structure first is the single most common case-interview mistake — evaluators want to see you plan your approach before executing it. The other frequent gap is ending a case with a summary of findings rather than a clear recommendation stated as an actual answer to the original business question.
Practice cases out loud, not silently in your head — the structuring and communication is most of what's being scored. Always state your framework before working through numbers, narrate your math as you go, and end with a one-line recommendation before the supporting detail. For fit questions, prepare two or three leadership/teamwork stories using a clear situation-action-result structure.
KrackerAI builds a report from your resume and the specific consulting job description — fit-question preparation matched to that firm's actual style, plus firm and industry research, so you walk into both the case and the fit interview already informed.