ZAGS prove you don't have to have one and done players to be damn good. Get good players...coach-em.
There's actually an even better example: Your defending national champs and current #1 ranked Villanova Wildcats.
Hoops recruiting rankings aren't as readily available as they are for football. But
none of their five recruiting classes that composed last season's title team ranked in Scout's top 25 (which is as far as they go in their rankings). They got a bit of a bounce in the '16 and '17 classes, where they rank(ed) 19 and 20, respectively. Still, they're hardly giving UK and Duke and run for their money on the recruiting trail.
Hopefully, by the time all our freshmen are juniors and seniors, they'll be able to go toe to toe with Cal's one and done guys. But it's probably not happening this year.