That old song, "Backfield in Motion" still rings true in the current NFL.

With the Eagles adding Michael Vick to McNabb and Westbrook, their backfield is in complete motion. The Seattle Seahawks can be added to that list. They currently have Julius Jones, who is their starting RB, T.J Duckett, and two young backs in Devin Moore and Justin Forsett.

But they may not stop there. There's a strong possibility the Seahawks may sign free agent RB Warrick Dunn.

Dunn was the runni...

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