I would say you would have the potential to get a fantastic deal by trading him to a team that needs veteran leadership.
Maybe trade him to a team which has a coach on the hot seat and is on the bubble to making the playoffs. I'm sure he'd easily trade a 2nd rounder. Maybe even a 2nd and 7th if he is going to get 2-3 years of service from this player.
Or you could trade him to the Raiders for 3 firsts and Aso...