John Chavis Era begins: Texas A&M swiped defensive coordinator John Chavis from LSU over the off-season, a move to help bolster the Aggies woeful defensive efforts over the last few years. A&M ranked 102nd in total defense last season and last in the SEC. The Aggies were 109th in total defense in 2013. Chavis’ departure from LSU has thrown A&M, LSU and Chavis into a court battle that’ll likely hover over the football season.