seventhinning:
Look at the previous responses for your answer. Coaches play the best players -- or, put another way, coaches play the players in whom they have confidence. If your son is not pitching, he has not won the confidence of the coaches for whatever reason. He can talk to them all he wants, but he needs to be careful and judicious or else it could easily backfire on him. The best he can do is to work hard, remain positive and, especially, be prepared for whatever opportunities come his way. You never know when that will be, but I have seen plenty of players -- down on their situations -- fail because they either were not fully prepared for the chance or, perhaps, they just were not good enough.