FBG says: Neutral matchup. For the first time in several years, the Lions boast an explosive young runner with elite upside. Kerryon Johnson is excelling on nearly every touch of the ball, though curiously, coordinator Jim Bob Cooter seems dead-set on a committee approach. Johnson routinely cedes 15-20 snaps and 8-15 carries to LeGarrette Blount, who produces just 2.49 yards apiece. For now, fantasy players have to rely on Johnson's dynamism to generate RB2 upside. But that's not a huge leap of faith: the rookie is averaging 5.72 yards on his 50 rushes, after all. His Week 4 performance against the Cowboys was pure dynamite, from his game-opening 32-yard scamper to his tackle-breaking 8-yard touchdown later on. Johnson may be tough to project right now, but he's absolutely maximizing his opportunity, and his day is coming. Blount may keep the short-yardage role locked down, but the dirty secret is that he's traditionally been a subpar runner on the goal line. The only real fantasy value in this running game belongs to Johnson.
Miami's run defense isn't terrible, but it's still fairly vulnerable and in need of a playmaker or two. The defensive line has overachieved, drawing good marks in the wake of Ndamukong Suh's departure. But there's still not enough consistency on the second level to slow down runners. Linebackers Kiko Alonso and Raekwon McMillan have struggled, and the return of star safety Reshad Jones hasn't been enough to paper over it. When runners cross the line, they're too often shot into the Miami secondary with a full head of steam.