Tell me about a time you managed someone who was consistently underperforming. How did you diagnose the problem and what was the outcome?
leadership · Senior level · general
What the interviewer is really asking
Assess whether the candidate diagnoses underperformance rigorously before acting, gives direct and timely feedback, and drives a clear outcome (turnaround or dignified exit) without avoidance or cruelty.
What to say
- Separate the diagnosis from the verdict: name how you distinguished a skill gap from a motivation, role-fit, or environment problem before deciding on the intervention.
- Describe the concrete feedback loop you ran — specific expectations written down, a timeline, regular check-ins, and the support you put in — not a vague 'I coached them.'
- State the outcome plainly, including the timeline you held yourself to, and what you learned about acting sooner or reading the signal earlier.
What to avoid
- Don't tell a story where the underperformance went on for many months with no documented feedback — that signals avoidance, not patience.
- Avoid making the person the villain; an interviewer reads contempt as a sign you'd be hard to recover from as a report.
- Don't claim every case turns around — refusing to ever exit someone reads as conflict-averse, and a manager who never lets anyone go is a red flag.
Example answers
Strong: A senior engineer on my team had slipped to missing commitments two sprints running. Before assuming a performance problem, I looked at whether it was scope, skill, or motivation — I paired with him for two days and found he was over-indexed on a legacy system nobody else understood, so context-switching was killing him. The real issue was role design, not the person. I rebalanced his work to make that system his clear ownership, wrote down what 'on track' looked like for the next month, and we checked in weekly. Within six weeks his delivery was back to senior level and he became our go-to for that subsystem.
Weak: I gave them lots of chances and kept hoping it would click, but after about eight months it still hadn't improved so eventually HR got involved and they were managed out.