The Raiders need a QUARTERBACK and offensive linemen pretty bad ... they were both terrible last year. They have multiple problems. If they can figure out their QB situation first, I think there's a good possibility of Moss being available. If they somehow pick up Matt Schaub from the Falcons, it will be obvious that they are going to take Calvin Johnson #1. I doubt Moss would be on the same team as another super talented receiver like Calvin Johnson, so Moss will be outta there. He's said many times that he wants out of Oakland anyway.
If the Dolphins are thinking about him .... Moss will need to lower his contract somewhat and make a LOT of assurances that he won't be a disruption to the team. If he could just be cool when the media interviews him, he'd be alright. Someone needs to tell him that he should NOT be telling reporters what is REALLY on his mind. Can't do that. Bad thing.
Gotta play the media game and say the "politically correct" thing ... or else the media will go after you like piranhas. It's also better for team morale. Maybe talk about what he really thinks to the coaches but don't be doing it around the media ... and when he does, just be smart about it. If there's problems with the team, the media and the fans will already know all about it.