OXFORD, MS – NOVEMBER 17: General view of fans watching the game between the LSU Tigers and the Mississippi Rebels at Vaught-Hemingway Stadium at Hollingsworth Field November 17, 2007 in Oxford, Mississippi. LSU beat Mississippi 41-24. (Photo by Joe Murphy/Getty Images)A major college football assistant coach was reportedly relieved of his duties on Monday night, with an SEC football program making a sizable change to its defensive staff.Ole Miss has reportedly made a change to its defensive staff, as head coach Matt Luke has reportedly fired defensive backs coach Jason Jones. The move reportedly happened late on Monday night.Rivals.com first reported the news.“Ole Miss defensive backs coach Jason Jones was relieved of his duties today,” he reported.#OleMiss defensive backs coach Jason Jones was relieved of his duties today.— Chase Parham (@RivalsChase) February 12, 2019Ole Miss had one of the country’s worst defenses in 2018, so it’s not too surprising that a major coaching move was made – though it’s a little surprising it happened weeks after the end of the season.The Rebels allowed 483.4 yards per game, including 261.7 yards per game through the air.Jones had been with the Rebels’ program since 2013. He came to Ole Miss after coaching at Oklahoma State.Ole Miss has made a couple of big moves on the defensive side of the ball this offseason. The Rebels hired former Colorado head coach Mike MacIntyre to help on defense.The Rebels are coming off a 5-7 season in 2018.