The problem is a real one. There is no way for the TSSAA to sanction pitch counts, innings, days rest, etc... This issue can only be solved by protection through proper offseason programs and set rotations during school ball. Proper programs can implement long toss programs, mechanics programs, and proper weight lifting programs (for pitchers). Coaches can help prevent injury in season by limiting pitch counts on days where you are the better team on the schedule. Percentage of certain pitches should be taken into account. Days where your "stud" can overpower and get outs with fastball then you should stay above the 80% mark with the pitch in a certain game. The introduction of the slider and emphasis on the curveball in highschool baseball has started to deteriorate arms at a rapid pace. Kids want to learn the curveball and slider before proper mechanics are learned for a fastball and the best pitch that nobody knows about...the CHANGEUP. This can be tied back to 10-12 and 13-15 age kids who love the strikout more than the groundout. Groundouts save pitch counts Strikeouts are sexy, but in the end inflate pitch counts to an astonishing number.
Just my two cents here. I could be very wrong.