Perhaps outside of Jacksonville, no team did as more to sweepingly overhaul a weak defense than the Oakland Raiders. GM Reggie McKenzie added Bruce Irvin to his front seven along with Sean Smith, Reggie Nelson and first-round rookie Karl Joseph to the defensive backfield.
Khalil Mack boast skills to be the next great edge rusher in the NFL, Mario Edwards -- who expects to return following a neck injury -- has upside entering Year 2 after a solid rookie campaign and second-round rookie Jihad Ward should to boost the pass rush.