Moneyball with basketball was discovering the value of the 3 point shot---NBA is even more homogenized than NFL. Udoka turned Celts around, so he gets jammed up on some sex scandal and that's gonna be a problem? Right? Nah not really. Didn't miss a beat.
Popovich is actually a good example of someone that could've left at the right time similar to Phil Jackson. If Pop leaves after 2017ish, he's considered the best coach of all time by many (atleast modern era, we'll say post 1980)
Now people see him with egg on his face and he's just lumped in as 1 of the best with the rest really. Riley, Phil, Brown. I doubt he goes down as superior to them really. Not that anyone cares who the best coach is or anything.
I think guys like Spoelstra are great coaches, but edge is small. Bigger edge is probably in player development....Heat always find guys whereas the Bucks never find anyone. But even that could be variance/dry up sooner than later.
Problem being it wasn't really discovered quick enough by a select number of teams, Kinda got discovered by all teams at once.