6-2, 9-4, 10-3, 15-0. That is steadily improving the team. Did he get lucky and win a championship? Sure, but as the saying goes Luck=preparation+opportunity. He built a solid team year by year then took a chance on a nobody named Joe Brady (when he hired him did you think- wow, now LSU is going to shatter offensive records? I doubt it). The team was prepared, Ed O had recruited well so the team had lots of talent, they were physically tough, he hired an elite DC (the one Richt wanted), and Joe Brady completed the puzzle.
As I said in another post, I am baffled by the "he caught lightning in a bottle" dismissal of his accomplishments at LSU. Lightning in a bottle is Larry Coker inheriting an elite team and not having to do a single thing to win a ring. Orgeron rebuilt that program. I don't understand why this is hard to accept. You can say he's a bad fit for lots of reasons, but I think its disingenuous to diminish what he managed to do at LSU.