There's a different Saban rumor every year. He's a [expletive] god in Alabama. He gets to pick which 25 (or more if he feels like it) of the best HS players in the nation he wants to have on his team every year. His employer basically gives him infinite money as pay, as well as infinite money to hire whomever he wants and however many people he wants. No one cares if his players are functionally illiterate or commit a crime (although, to be fair, he seems to have less of the latter than many in his position might) because he loses 1 game a year. He'd be a moron to leave.