‘McGahee, for one, knows when Shelton is in the lineup. After the Week 3 loss to the New York Jets, McGahee said one of the reasons the Bills didn’t attempt a running play from the red zone was because Shelton had left with an injury. “It’s a big difference, because that is what he does,” coach Dick Jauron said about his team’s blocking ability when Shelton is out of the lineup. “Those guys are hard to find, lead blockers.”‘