Hiring and maintaining your staff members is an important part of FMA. A new group is assumed to have no staff except you, the director. Staff members increase certain stats by a preset amount. This amount is added when you buy/rank them up, and it is automatically added at the beginning of each season.
The staff management page shows you the current rank of all your staff members, as well as what their current effect is on your score, and the effect they will have at the next highest rank.