Ok...so it sounds like some of you have thought of this as well. As a HS coach, I don't have much control over the kids until they are 14. We currently run a year-round program, and do incorporate some of the stuff that you are talking about. We long toss/lift and do yoga here in the fall. Beginning in November, we stop throwing for 10 weeks and do the athletic pitcher from Wolforth, in addition to yoga and lifting. Then we begin throwing in early January. Our first game is March 22.
We are starting to get more involved in the JH and upper elementary baseball here at this school, and I am trying to figure out the best way to develop pitching. We only have 2 14 year-olds with much arm strength, and they are so worried about taking pitching lessons, but I have tried to tell them again and again that it is arm strength they need, not instruction.
I guess I'm just rambling at this point, so I'll see where else this thread goes.