OK, this is the kind of stuff that makes me disregard this guy's argument. Go look at at Tom Izzo's first five years. A Sweet 16, two final fours, a national title, three regular season titles, two conference tournament titles. Any coach with that kind of record in the first five years basically gets them a lot of leeway and time, plus continud success lengthens that kind of tenure.
Heck, look at Tubby Smith. Won the national title his first year and had a couple more strong seasons. Got him nearly a decade at Kentucky where they demand winning.
I agree with some here that there should be a better pipeline for minority coaches who are assistants, but you also have to acknowledge the reality of big time college basketball where results really matter. I said it earlier, Johnson would be here longer if there were more wins.
If there's a black coach with a good track record of building programs and winning where it counts (conference, post season), I think almost everybody is open to bringing them on board.