COACHING There are no changes at the coordinator level for LSU, but a couple key position coaches left. Bo Davis, an excellent defensive line coach, left for the same role with the New Orleans Saints and is replaced by Tigers alum Kyle Williams. Williams spent 13 years playing in the NFL and was a six-time Pro Bowler before taking on a gig as defensive coordinator at Ruston High School for the last five years; he has no pro or college coaching experience. We’ve seen these kinds of former player …