He had it rolling. In my unedumicated opinion, he's a more complete OC than Kiffin. He actually develops and teaches. Kiffin did a mighty fine job of calling plays for us, but I don't think the did well at developing and teaching players to understand on their own. Prime example - Jalen almost regressed between year 1 and 2.
Bingo!
Kiffin is a playcaller not a coach.
That is why he he has had limited success at all of his previous places of employment.
Kiffin has been at his best when at the OC/Asst Coach position.
He does not have the ability, or character, to manage an organization.
All that being said, I like to watch his offenses, but Sarkisian is a better playcaller as well.