Come back and work all Summer on improving his outside shooting. Diallo needs to prove he can shoot serviceably - doesn't have to be a 40% 3-PT shooter, just not 20% - play excellent defense at the college level - he'll learn that under Cal - and show that he's a gamer, i.e. a player with a lot of heart and an elite motor,
If he can do that, he'll be a lottery pick next year.
If he can do that, he'll be a lottery pick next year.