It's always a gamble when choosing an FCS coach and a good portion of the time, it doesn't work out. The last time a Mountain West team hired a successful Montana coach, he failed (Joe Glenn & Montana) and we all remember Mick Dennehy at Utah State (also a successful coach at Montana).
With that said, it is a hire with coaching experience and I think that is important. This is something lacking with Mike Sanford and it obviously came out he wasn't head coaching material.
Now we'll see if Hauck is D1-A material.