keep powell.. Bring greene back? Id rather draft a rb, but unless ypu get lucky got o grab 1 in the 1st or 2nd round.. Which is where we probably need to pick a olb and Oline. maybe can get a good lineman in 3rd..
keep Powell and McKnight, and actually use the latter as a RB.
Greene can be replaced/upgraded, for cheap, via draft or free agency.