My thought, as an incoming freshman new to pitching, is to start with lessons this offseason. Add some pitching specific workouts to increase strength and mass. Play the spring season and see how he stacks up. If he doesn't already have a summer team, find one. Play the summer and see how he stacks up. Then in the fall of his sophomore year, you can see if he has the measurables (ie; velocity) to start showcases/camps. If he doesn't, then repeat the offseason work. I think he really needs to be in the 80's before he showcases/camps would be worth it. Hopefully, he'll get there by his JR fall and he can hit the circuit hard. Good luck.