Co-sign this.
Even if you did 2 position training with 5-6 players, that would be ok. But you need to focus on training either bigs or smalls and just fill the rest of the roster out with veterans so that you won't be tempted to start training them as well!
I've been reading your posts for 3 years here, umpteen people have told you to focus your training instead of spreading it out but you keep creeping back to old habits. Change these bad habits and you'll promote. It's that simple.