FSU fans might come sider him great, but history won't. He'll be another good coach who was at the only good school in the conference and beat up on nobody's, just like Bowden. Bowden was considered mediocre for years until he finally found a good kicker.
Anyway, I don't know why he'd come and frankly I don't care why. I just know he was about to last year. No reason why he wouldn't this year, but it's going to cost LSU at least as much as Bama is paying Saban.