I like to sit down with staff members and discuss what has or has not been done based on that initial assignment. A typical high school coaching staff might include the varsity coach, a varsity assistant, the junior varsity coach, and the 9th grade coach. Smaller schools usually don't possess the luxury of having an expanded staff, but duties should still be clearly defined. A head coach may only want to have a varsity assistant who does no more than cheer on the team. Never underestimate the value of this coach.
Coaches can be a cocky lot, but insecurity is often the watchword after a tough loss.
The assistant who can listen is a great asset. I've had JV coaches do. Freshmen coaches follow the same pattern. It is important to remember that these people should not be bogged down with a college-type work load. A lot of varsity bosses get themselves into trouble by overworking their staffs.