No. Frost has been a coach since 2007 and all but two of those years were at the FBS levels. He was 33-8 while working as an OC at Oregon, OC'd a national title contender, and then we all know what his 2017 UCF team did. I realize it's fun to play revisionist's history with Frost nowadays but he was, by most objective measurements, a great hire for Nebraska back in 2017.
I'd like to see Deion get into the FBS and put a couple of years under his belt before he tries to coach at a place like Nebraska. There's a reason you don't usually hand a F4 driver the keys to a F1 car.