The New Orleans Saints have fired defensive coordinator Steve Spagnuolo and defensive backs coach Ken Flajole.

"I personally want to thank Steve and Ken for their contributions during what was an unprecedented 2012 season," Payton said in a statement. "Philosophically we are changing our defense to a 3-4 alignment and right now is the best time to accomplish this transition."

Spagnuolo replaced Gregg Williams last offseason.