Hindsight is always 20/20. There are tons of mediocre college head coaches, and a very few great ones. Most of the mid major coaches who had a couple of great seasons when they had the horses, fail at a high D1.
Chances are, by history only, that McKillop would not have had the same success here. Not surprisingly, the guys who break through at a high level with the same sustained success also happen to be great recruiters, often buoyed by a great program. Cal, Self, K, all were/are great recruiters who had great programs behind them. Mark Few also, but he built the juggernaut.
Billy Donovan was on our list this time, but if he was interested (he wasn't) at this point to return to college could fetch $6-8 million as a top of the heap coach at a program with very deep pockets.
There are only a tiny handful of sure thing hires, if they even exist. RP is one of them. Without looking forward 6 years, it would be very unlikely to secure anyone at his level.
As important as the coach and likely much more important are NIL dollars needed to finance a top talent program. Essentially the portal along with NIL creates 1 year free agency where the price tag on break through players skyrockets.