Coming off a high school team with maybe 1-2 pitchers onto a team that now probably has at least 15 pitchers.
There will be 15 whereever you go too.
If he's pitched in some games as a freshman and 1 of 5 pitchers to get some innings, he's doing well as a freshman at a D1.
Give him some time to prove himself.
Remember when he was a freshman in high school?
It starts all over again.
Good luck.
Big scholarship does not translate to playing time.