I assume thats Darren McFadden right?
If so, still a bad move. Rather have an good young CB, than McFadden.
Get Felix Jones, Ray Rice, or Jonathon Steward later on, and still have the ability to get an CB (which is now really important without the signing of Reeves), and WR.
Heck, a good possibility is signing Warrick Dunn to a small contract and being used as a change of pace back.