Plan mock interview sessions.
A mock interview without structured feedback is just a rehearsal, so the feedback block is counted as part of the session rather than as an optional extra — typically 40 percent again on top of the interview time. Dividing the target number of mocks by the weeks available gives a weekly cadence, which is the number that determines whether the plan needs one partner or several.
Mock interview cadence
Minutes per mock = interview time + feedback time; total hours = mocks x minutes per mock / 60; mocks per week = mocks / weeks available
Four to eight for a significant role. The first two surface the obvious problems, the middle ones fix them, and the last two build fluency. Beyond about ten the returns flatten sharply.
Not for behavioural rounds — anyone willing to ask hard follow-up questions and give blunt feedback is useful. Technical rounds do need someone who can judge the substance of the answer.
Because improvement comes from the review, not the repetition. A mock followed by twenty minutes of specific critique is worth more than three mocks with no analysis in between.