There is a young teen on the high school team. I have tried working to improving his release. Actually I have made numerous attempts.  My concern is that he is no longer going to have a hand or wrist left the way he keeps throwing the ball.

Through the swing,  he is basically keeping his hand on top of the ball (fingers on the right, thumb on the left), as the arm goes forward he turns his hand so that his fingers are now in front and the thumb is behind. His release consists of flicking his wrist up, causing this funky looking spin on the ball.

I have tried to get him to change, and he refuses to listen. I am to the point of throwing in the towel. Is it is worth spending any more time with him? There are plenty of other kids that listen and want the help.

I am really concerned. I am just trying to stop the hand on top of the ball and wrist motion. I have been trying to encourage small adjustments.

I'm a youth coach as well, and if they don't listen and try to change, then i'm done.  If he is actually trying to change, but is having a difficult time, then i keep trying.  I also talk to the parents to see if he can do some drills at home or when they take him out to practice, and so that they also understand the problem. 

It would beca lot harder to do that in many brands or wrist braces that are available. The reason is obviously that he thinks he is hooking the ball and thats where scores come from.

Adding a wrist brace may help him get a better release and rotation on the ball that may help get things back on track. Other wise you just have to try working with others more willing to learn.

Sometimes it is also a matter of thinking you are doing something different when you actually are not. Video can be very helpful.