Who should I start week 4 at RB?

I would actually go with Kuhn here. The Lions are dead last in fantasy points allowed to opposing RBs and Kuhn will get the ball at the goal line. The Lions have allowed 371 rushing yds, 254 receiving yds and 7 TDs to RBs so far. In contrast, the Dolphins have allowed 300 rushing yds, 72 receiving yds, and only 2 TDs by opposing RBs to date. The Packers are also more likely to be playing from the lead and running in the late stages of the game.