I think it will clearly be Knowshon as the lead back now.
There was no reason for us to keep him rostered except as pure depth to McGahee. Hillman is the change of pace back and Ball plays special teams, which is the only reason he's been active and Moreno has not been. If Moreno wasn't the direct backup to McGahee, then we would not have kept him.
I'm grabbing him in my fantasy league. We have a cupcake run defense schedule in the fantasy playoffs, and I think Moreno will be the lead back, with Hillman and Ball keeping the exact same roles they have now.