Last season my son suffered one sliding head first into home.
The team trainer tried to help but was basically over her head. The school doctor was disinterested and delayed the MRI to see if it would heal on its own. After the season we went to a top sports ortho who recommended an excellent PT who specialized in throwing athletes. After 12 weeks of fairly grueling rehab my son was able to swing and throwing had returned to about 75% (sufficient for an OF).
My biggest takeaway is that 10 weeks were wasted while the school staff dithered, and the PT put him through routines that were effective and that somehow no one on the school staff were aware of.