I mean he's been so bad that no team would take a chance on him to be second or third string at this point. He's THAT bad.
If Russell was cut I would be fully supportive of the Vikes bringing him in on the cheap, hopefully to sit for a year behind Favre and learn the work habits needed in this league, the physical tools are comparable. That's just me though and I am a firm believer that the raiders are pretty much screwed right now at every management level. Jason Campbell is similar to me, young QBs being messed around with constant system changes, coach changes and that sort of thing makes life really hard.