If he takes the redshirt do it. I had a frosh with an 18 w/e all pots high except 2, and they were average, get 14 min a game. w/e improved 2, overall 42 points improvement, but lost about 6 of it in the offseason. that was at D3, so I don't know if a d2 player would be different. But if your guy is getting less PT than that, I'd expect less improvement.