What's the downside to letting him play out his contract? It's actually a pretty good way to play it.
The only real option is to cut him, but what does that get you? The cap hit is still there and spreading it out doesn't matter if your resigned to not competing for a SB next season, which certainly seems to be the case.
Trading him requires his approval, and who is going to give up much for a guy they know will be available next season?
I can make a case for just cutting him, but I can also make a case for letting him play the last year of his contract. It really doesn't make much difference.
Who are these veterans your going to trade for a haul to facilitate a rebuild? This isn't the horrible team that Walker played on. Not smart to trade your cornerstone players who are still on the front end of their careers. Who is worth much of anything after Parsons, Lamb and maybe Diggs? There goes most of your offense and most of your defense.
This team is in good shape to reset at QB, fill the roster through the draft and potentially be in a position to compete in 2 or 3 seasons.
And yes, I know the chances the Jones can actually make any of that happen is slim, but a well run organization could, and its a smart play.