4. Detroit Lions
Joe Lombardi comes over from New Orleans and is assembling a Saints North in Detroit. We know what the Lions have in Calvin Johnson, but now have a true No. 2 receiver in Golden Tate to prevent defenses from double-teaming Megatron. The three-pronged backfield of Reggie Bush, Joique Bell and Theo Riddick gives the Lions three backs with different skill-sets. This offense could be even more dangerous if Eric Ebron develops as a Jimmy Graham-esque tight end over the course of the year.