TL16 barely played into the 3rd quarter most of his high school career and broke Deshaun's high school record. I expect something similar in college. Therefore we should still see quite a bit of KB2 . That's not a bad thing as they are both great Tigers.
I agree that Lawrence was extremely impressive in HS, and has been equally impressive this year too. But I'm sure that Watson probably didn't play many full games himself in HS.