Because Ryan Day made some nice tweaks in addition to retaining worthwhile staff members rather than starting from scratch. He brought in Yurcich from Okie St to pair with Tony Alford who has coached up some bad ass running backs to run the offense, the result is the nation's #6 scoring offense.
OU should be a three loss team right now and they're fortunate to have one loss, but Riley has reached the playoffs two consecutive seasons with two different quarterbacks and he could end up weaseling his way into the playoffs a third consecutive season with a third quarterback. He already accomplished more in his first two seasons than any of the clowns coaching Texas have in a decade.
Miami attempted to clean up their Thug U image when they hired Randy Shannon. They graduated more players and kept a clean image, but they didn't win shit on the football field. UF had several misses, but they're looking good under Mullen. FSU was winning under Jimbo, but the ascension of Clemson squashed that.