Brand new school. Fresh start for everybody. Summer workouts will be huge. First opportunity for everybody to make an impression with the new coaches.
I know that it probably feels like he’s coming into things too late, but if he’s played other sports, even just for fun, and he’s in good shape, and a decent athlete, he will be just fine. He may not be a star, but he’ll be able to get some good playing time and have a good experience.