McKinsey is clear about the outline. Its careers pages state the spine: a CV screen, the Solve assessment, and interviews in which most client-facing roles take a personal experience interview followed by a problem-solving case. So on this page that spine is marked official, while the number of interviews per round, the seniority mix, the Solve scenario names and timing, and the time to an offer are marked community-reported: detail consistent across practitioner guides and aggregated candidate accounts, but not McKinsey's stated process. Treat it as the typical case, not a guarantee.
The single most useful correction is the PEI myth. The personal experience interview is not a warm-up chat; it is half of every client-facing interview, and McKinsey publishes the areas it probes, personal impact, entrepreneurial drive, and inclusive leadership. An interviewer typically takes one story per area and drills it for many minutes, so prepare it with the same rigor as the case.
The second correction is the case itself. The problem-solving interview rewards structured thinking and clean quantitative reasoning out loud, not a recited framework. Memorizing a list of frameworks and forcing one onto every problem reads as exactly that.
The practical takeaway runs through every round: because the CV is read by a human and the interview pulls from the stories your resume implies, the resume work is to make problem solving, drive, and leadership legible and to pre-load specific, quantified craft the case and the PEI can both probe.