It’s good to play multiple positions. The coaches will set his path re that over the course of his high school career
The best piece of advice I received for my kid who is now a High School Senior is to make sure his Grade Point Average is as high as possible. Going into high school, we knew he wanted to play college ball, and we had no idea what level of college ball he’d end up being good enough for... what was clear though, was that a high enough GPA would enable him to get academic scholarships