I'm not sure the Steelers are even interested in trading him. He is getting paid a ton also, likely league high for safety, which he started playing last year while being paid as a top CB.Ramsey is interesting. While he's definitely lost a step or even two, he does play center field pretty well. He's also fantastic against the run. I'd almost be tempted to bring him in as a WLB on passing downs. He most certainly would be better against the pass than Landman or Speights and I wouldn't be worried about him if the opposing team decided to run at him.
I don't remember Ramsey blaming others while with the Rams, I only remember him slapping Rapp in the face because he was always out of position.