Polamalu is obviously not the same player he was just a few seasons ago, but the Giants wouldn't ask too much of him. He could be a situational player that adds depth and experience to a very green group of safeties.
But the questions that would need to be answered before such a move was to be made would start with Polamalu's health and how much desire he has to continue his career in a new venue. From Rotoworld:?
Polamalu said he made the decision (to retire) so he could spend more time with his family. The Steelers asked Polamalu to retire months ago to avoid the awkwardness of cutting him. The 33-year-old was a remarkable talent, appearing in eight Pro Bowls during his 12-year stay in Pittsburgh. Polamalu won two Super Bowls and was named 2010 NFL Defensive Player of the Year. Injuries marred the end of his career, but there's no doubt Polamalu is Canton bound. He was the rare (only?) safety around which a defense was built; Dick LeBeau specifically designed his defense to allow for Polamalu's highly-disruptive freelancing.He may not be a fit for what returning DC Steve Spagnuolo is planning to do with the defense, but then again, in the right context he may be. Now, how healthy is he?