Treat it as normal. Partner rounds can be less standardized, and a senior interviewer may spend more time testing your judgment, motivation, and career story.

Do not force the conversation back to a case simply because your preparation assumed a fixed format. The interviewer controls the agenda.

If the discussion stays on your resume, answer with the same level of structure you would use elsewhere: concise context, your specific role, the decision you made, and what changed.

Prepare both cases and your background deeply. A conversational final round can still be highly evaluative, even when it does not look like the first-round script. Review your resume for likely follow-ups on decisions, conflicts, leadership, and results so a conversational interview does not catch you relying on bullet-level answers. For more detail, see the case interview guide.

If the partner wants to talk about the resume, I would assume that is the interview they chose to run.