Long time UCF fan here. The cupboard was not at all bare when Frost took over. Smith, Akins, Griffin twins, etc were all GOL recruits. That 0-12 season was an abomination and in no way indicative of the talent level.
Frost screwed up plenty in 2016 and easily won 6 games.
He is a very good coach and recruiter, he doesn’t have the pieces yet to run his system at Nebraska.
That said watch out for Chinander. He’s in over his head as a DC and would probably still be a position coach if it weren’t for Frost.