USC AD Lynn Swann resigns USC has for too long relied on the figure head AD; former USC athletes like Garrett, Haden, Swann....This is a job, particularly at the upper level of the NCAA, that requires administrators, not celebrities.
Read a highly speculative article a couple of weeks ago, before the first kick off that was already speculating on who would replace Helton as head FB coach. The article concluded Swann would convince Tomlin to leave the Steelers and coach at SC. Don't think that's in the cards now.
Dave Roberts is a straight arrow. I recall he lived in the dorms longer than most, even lived in the dorms at law school (not at Davis). Probably still has a couple of large glasses of milk with each meal.