you told the coach that you weren't going to do the travel team again this year. so if he didn't put you on his roster, where were you going to play?? I'd play him in Travel just to get the reps. If the competition is not as good as you'd like, he can still use it to work on his game. Hitting to the opposite field, working on his bunts. He can still polish his baserunning skills and certainly his defensive skills. And he can be a leader on the team as well.
In addition, I'd keep him on the Sr. Legion roster for emergency purposes.
Good luck!