Useful app, hope it gets even better – Coach Tactic Board: Soccer Review

I coach girl's U10 soccer and have 7 players on the field and 4 subs. I don't understand why the app always has 20 players on our substitute button. Things I like: I uploaded photos of each player and the kids love seeing themselves as little avatars. The animation creation function is a great way to demonstrate plays and strategies. Things I don't like (or don't understand): I want JUST 11 players; 7 on field, 4 subs, and I don't understand why the substitute function is cluttered with our 11 avatars and 9 more generic numbers. I also don't understand what's the purpose of the "hidden" players in team management. It would be great if the photo uploaded could grab photos from cloud services like Google Photos, iCloud, etc.
Review by Bob O'Lingo on Coach Tactic Board: Soccer.