It's no secret got some talented RB's and if we end up not trading any of them, then we've got a problem. Our desire to go with a feature back would mean we'll have 2 good RB's sitting on the bench.
After seeing Brian Westbrook eat us alive in the playoffs, I'm wondering why don't we use Bennett/Moore in the same way? We could line them up in 4 or 5 receiver sets, or use them for screen plays. They've got the speed to go deep and have decent hands, not to mention their great running skills. Smith could then concentrate on running the ball (that's assuming he wins the starting job!).
My point is, let's use what we have!