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That brings us to the wild card in the whole running back puzzle.
Based on how the Steelers are preparing, I think you can conclude that they are of the opinion that Mendenhall will be more luxury than anything once he's healthy and ready to play.
I don't think we'll see Mendenhall starting again. I think Redman will shoulder the load regardless of his health this season, and Mendenhall will have to carve out some other kind of role.
That could be at the goal line.
The problem is, as anyone who's been watching Pittsburgh since 2009 can tell you, the last thing you want to see is Mendenhall carrying near the end zone. Whether it was the line's poor blocking, Bruce Arians' unimaginative play calls or Mendenhall's lack of ability in that role, it rarely ended well.
Mendenhall might end up simply working as a complementary player until the team is comfortable that his ACL can stand up to more punishment. His case will be among the most interesting moving forward.