The interviewer needs to gauge how your evaluation of success aligns with theirs. The manner in which you evaluate your team's success will speak to your success as a project manager. This question aims to determine your approach to project management. Do you keep your eye on the big picture or focus on short-term goals, evaluating success as crossing day-to-day tasks off your list? When you're leading a team, it's imperative to be aware of the level of success that each team member is delivering. One underperforming team player can drag down the entire group. How you answer will also give them insight into not only how you motivate your teams, but what motivates your drive to accomplish the various goals you've set out for yourself in your professional work environment. Talk to the interviewer about your approach. Tie your answer to the success you plan to bring to this particular position.