Particularly in Waivered Airspace, like at air shows, the Air Boss is in control of the airspace, is responsible to the FAA for the waiver and all activities within the space, ground, and air. My spouse is Air Boss for several shows in Indiana. It's a lot of work, filing the waiver, dealing with the FAA before, during and after, doing the pre-show briefing and getting all that ready...the actual Air Bossing part of it during the show is the easier part usually. Until that moron busts through the space without talking to anybody in the middle of the skydivers coming down, of course...