What about paying for extra session with trainer if one of the trainees don't get 48 minutes in a week? Often, every second or third week, one of my 3 players get 42-45 minutes due to foul-out. It would be nice if we were able to compensate for these minutes by paying some amount.
E.g. to use such option, a player should have at least 36 minutes to prevent misuses (training of more than 3 players at one position) and that each extra minute cost 10,000?