The interviewer would like to gain an understanding of your leadership activities. You may have leadership roles on your resume. If you do, be sure to bring this experience to life for the interviewer by discussing how many people you have lead, what their job titles were, and the volume of work you needed to facilitate.
If you do not have experience with supervising crews or facilitating schedules, think of other times that you have jumped into a leadership role without being asked. Show that you are a natural leader and someone who can take control of a situation when it's appropriate, and when you see the need.