It was actually year two at both Temple and Baylor when the magic began -- and then it exploded in season three.
After 2-10 at Temple in Rhule's first season, he guided them to a 6-6 record in season two. That's significant progress.
After 1-11 at Baylor in season one (a garbage heap inherited far greater than any program in the nation), 7-6 record in season two, including a bowl game win over Texas.
Much like what Fleck did at Minnesota when he fired his DC 3/4 of the way through his second season then went on to win three of the four final games, including hammering Wisconsin in Madison, Purdue, and Georgia Tech in a bowl game -- by a combined score of 112 to 35.
A really good coach is most times going to show significant progress between season one and season two.
I question the efficacy of Rhule and his 'program' at the NFL level, but there is no denying it works at the college level.
It's hard to say why the approach Frost used, which looks somewhat similar from the outside, fared so poorly in year two. hopefully we'll see some dramatic changes this fall.