Hes pulling a Bob Sanders - Pitt needs to upgrade his backfield mate and his backup in the offseason. Hasnt he had injuries before as well?
Some reports have him being done for the year. Regardless of if he does come back they have major problems in the backfield and he's not plugging all those holes. I don't see them getting good enough to make a run again even if they bring him back.
I was surprised to see the team's performance hang so much on whether he is present or not. I know he's good, but there is a lot of psychology at play here as well.
