1. San Francisco 49ers
No one has a deeper corps of running backs than the 49ers. And having Colin Kaepernick is the cherry on top. Frank Gore had another fantastic season in 2012 with 1,214 yards and eight touchdowns on 258 carries, while Kendall Hunter (5.2 yards per carry), LaMichael James and Anthony Dixon backed him up. The team also has Marcus Lattimore waiting in the wings and they have depth in Jewel Hampton, D.J. Harper and fullbacks Bruce Miller, Jason Schepler and Will Tukuafu.