No guarantees one way or the other, brother. It's kind of like recruiting. I mean, Willie Williams was a sure thing and Sean Spence was too slow. Lance Leggett was a stud from Louisiana destined for stardom and Allen Hurns was too slow and average. And so on.
We could get Butch and he builds the roster up and kills it...OR...he could win 5-7 games for a few years and flop.
We could get Herman and find out he is, in fact, the next hot shot...OR...he could be average to below average and get fired in a few years.
We could get Richt and end up with what some expect, i.e. pretty good but boring, not great...OR...he could kill it here.
Only time will tell.