What i don't understand is the different play calling when Mack is in the backfield. Gore was having success with quick hitting plays but when Mack is in they try to stretch out the play. Why not give Mack the ball with quick hitting plays as well? Once he gets through the hole, his play making ability can take over. I also like Macks ability to catch out of the backfield, which also gets him in space and allows him to use his quickness to make plays.