I expect Oakland to pursue a lot of players. A guy I know close to their front office has told me Oakland like Saffold quite a bit, that being said, a lot can change before FA signing period begins. I dont expect Shields to come cheaply either, but, I do think he would be a great signing. The bargain price comment I made applies more to Incognito, however, I think someone will pay him more than $3 a year, which would be my limit on him.
I think you could see Oakland have a bit of the Daniel Snyder syndrome this offseason, signing 8 vet FA. You know, whatever.