watts1931, you have to be better organized if you have so many. I used to run basketball practice in a gym that had 2 baskets and I coached two teams at the same time. 24+ kids. You have to write out explainations of the drills you want to do. You have to create player folders. You have to identify player weaknesses. Then they work on what you've identified. Also, you have to have a day where you go over "cues," drills, your philosophy, discipline and every other thing you can think of. That day should end with players doing their work and you being the coach moving around. I'd recommend that for each drill or station that you identify those players that really understand what you want and have them help. Don't make them captains etc. However, give them a pat on the back to let them know how much you appreciate their efforts. (Note, I'm not a person that believes in Captains. If you do then fine.) When you're done with practice never let them leave without going ovre some of the things you saw. That way they'll know you are watching. If someone is messing up, generalize that mess up the first day. Talk to them privately. If they keep messing up. Get after them. It is do-able. You're going to want to pull your hair out sometimes. Good luck.