That is perplexing to me. Foley brought in White because he ran an uptempo, fast paced style. We really haven't seen that consistently in the 3 years he has been here.
White did have a pretty good scoring offense in a mid-major conference where you can get away with going small. Maybe, just MAYBE he will learn that is tougher in the high majors.
However, the reason Foley brought in White is that he is the son of that most honored, highly esteemed, saintly member of society, the Athletic Director. In a UAA that think it is all about them not that crazy Spurrier or that bum Meyer etc, they don't think it matters who they hire as coach so much as they, the UAA, makes the program successful. So of course the son (and brother for that matter) of an AD is just the kind of hire they would want.
Given that, maybe White is on the kind of learning curve like Donovan that this will work out nicely. On the other hand his team could not hold a 6 point lead for 25 second.