I am the head coach of my DD's 10u rec team. We have three pitchers, including her. We drive an hour to see a Tincher instructor. DD is only 8 and throws harder than most of the older girls in our league. The other two take lessons locally. Their dads notice the difference in her release and the way she comes off the rubber. They talk about wrist snaps and elbow to the catcher to their girls. I don't give any instruction to the other girls, but when their dads, who help coach, talk to me about pitching, I just tell them to youtube "best college pitchers" and watch how many of them finish with their elbow to the catcher. Although I'm in no way a pitching coach, I would like to help a girl who isn't taking lessons and wants to pitch. Just get her going in the right direction.