I don't see much comment about it, but I don't think Todd is very good running between the tackles. He tries. He's not afraid. But he just doesn't have the instincts of where pressure can be placed to force the pile to move.
Anderson has that skill. He just doesn't have all the other skills Gurley has. Malcolm Brown has that skill. He just doesn't have the other skills Gurley has. So, it comes down to showing your hand when you want to run and when you want to pass. Gurley in the line, it's a pass, play action pass or outside run. Anderson or Brown (not for the rest of this season) it's run between the tackles.