Is he expected to be a pitcher only? Pitchers have a bit of time....if your LHP can/will throw 90+ he won't have any problem finding a P5 home. There is always room for very good pitchers. They could even invite him to walk on....then they could just throw out the dead weight from another class.
"You want to go where you can play". <<<<<< This, every time.
Does your son have the measurables of the other commits at his dream school?