I'm sorry to hear about your injury. Wouldn't it be ironic if fifty years from now when you're giving your HOF baseball announcer induction speech you say it all started with an arm injury. More realistically, you can stay in the game. It's very rewarding to coach kids. It's even more rewarding to coach an age group where you may have an impact on their life. But whatever it may be, if you work hard you will do fine. Good luck.
At the least, I hope I have a son that I can coach one day. Seems like a really fun way to give back to the game and some kids, at least until their parents get mad about playing time 
Great thread and Godspeed to you,
Remember daughters play softball and you can coach them as well.
If you think there is abuse for the likes of TR, you should see the dad's on those threads... Daddy's little girl can do no wrong and they have 2x as many pitches at the boys do...