Highly doubt Miami would consider him for a second but worth noting Fred Jackson I don't believe has the wear and tear on him than most running backs his age. Would be nice to roster him just to let him try and run wild on Buffalo 2 times out of the year, but will never happen. Remember when Thurman Thomas was a Dolphin?
I was just going to say Dallas, as long as you can live with him getting hurt for a few games he's worth a look.