I understand there's not much the Packers could do to improve the offensive line run blocking at this point in the season, but as many others have said, that's a higher priority for me. Regardless of the reason, be it scheme, talent, execution, etc., if the offensive line blocked better, the running backs currently on the roster would do a sufficient job, at worst. With this blocking, I really don't think anything other than an elite talent at RB would make a substantial difference. I don't consider Blount, Jackson, or even D. Williams an elite talent. As a result, I can't see them being worth much money at all (or especially a nice draft pick).
If for some reason the Bucs were really interested in trading Blount for a 7th, of course I'd love that. I really can't imagine why in the hell the Bucs would trade him for that, but if so, the Packers should jump all over it.