My daughter is 5'4 130lbs 12yo. This is beginning her third year pitching. Last year she had a shoulder impingement that through PT and proper technique we thought we were back on track. She has hit a wall and I am clueless. Her pitching coach is saying she should be throwing so much harder. We do some weighted ball drill put she does not have fast arm speed. I am open to suggestions.
https://www.youtube.com/watch?v=9WV4JLKewc0
https://www.youtube.com/watch?v=9WV4JLKewc0