I don't have faith in Richardson and Bell. I forgot about Bernard.
There isn't outstanding trade value for a guy like Williams but there's always a desperate team in mid-season (searching for a good rushing attack).
A good rushing attack begins with the offensive line. The problem is and will remain the contract. Hurney screwed us and then basically blocked us from being able to trade him. I personally am more of a Stewart fan but until our oline shows up, we are the ones who will need a rushing attack.