Lane Kiffin is the big man on campus once again ... 'cause the Alabama offensive coordinator has reportedly accepted the head football coaching gig at Florida Atlantic.

Kiffin -- who was rumored to be a candidate for pretty much every open job at Power 5 conference schools -- has accepted a 5 year deal to be the next coach for the Owls, according to FOX Sports' Bruce Feldman.

FAU has only had a football program since 2001, winning its 2 bowl game appearances in its 15 year existence.