Yeah, there are limits around how often teams and players can work out as well as how often coach can be present. I'm trying to remember correctly, but I believe spring workouts all we could mainly do is lift and some light conditioning. The guys also play pick up several times a week. Once summer hits the the guys come back for summer classes, individual workouts can start were we could have those workouts for 2 hours a week along with the lifting and hard conditioning. Individual workouts consist of 3-5 guys at a time going through drills together from shooting, to defensive footwook, guarding the ball one on one, and other various drills to prepare them for the season. They then get 2 weeks at the end of the summer to go home before fall classes start. Once fall semester starts "individual" team practices start so coaches can have as many players as they want on the floor at a time so usually the whole team. This is limited to twice a week I believe as well for only a few hours a week. Conditioning and lifting continue and then that rolls into the October first official practice.
So there are limitations as to how often a coach can be present during the week. It's key for the individuals to get up extra shots and grab a manager to help rebound and pass for them during the offseason because the coaches can only do so much in a short period of time.