As the NFL power rankings hit the midseason point, it's more than simply ranking teams. This is the perfect time to see what each team needs to do to up its performance, or, more accurately, which players on each team need to step up their games.
So that's what we have going this week. Our NFL Nation reporters selected one player on their teams who can most help their squads by producing more down the stretch. From running backs who haven't quite hit their stride to defenders who have more to give, we're calling people out -- in a way.