I doubt (okay, hope not) Chryst takes this job.  A case could be made that Pitt is a better job anyway.
I'm lukewarm on this.  BB is a complete buffoon and I was comfortable with him staying in Madison;  but on the other hand, the continued lack of continuity will catch up with the program within the next year or two.  Wisky is NOT a big-time program that can withstand this kind of turnover in such a short time frame.  OSU, Florida, Michigan...  yes.  but not Wisky.
One more thing to consider;   for potential coaching candidates, I'd be curious to know if Wisky has the perception of a program that still largely has Barry's fingers all over it, and that you'd be answering to the AD a lot more than at some other schools?  That could scare some other candidates away.  It may very well not be true, but it's one thing to consider.