I range from 12-16 on my 16U team. Right now I am actually low at 11 because I kicked 3 off the team 2 weekends ago and not looking for any until after our last fun tournament. We are honest and tell them best 9 on the field and others got to work for it. I will bat 11 if allowed. Others just have to work harder or wait patiently for their turn.
So, why'd you kick 'em off? That's got to be at least as interesting as your roster-usage philosophy.