I'm not saying one player should go or the other BUT I think it would be informative to place a value next to every player on the current roster who might have a trade value. We can think of it in terms of the draft value chart;
We can start with the defense;
I would be pretty much ready to auction the entire existing defense including Ware and Ratliff for the right amount of draft value in return;
Ware = 1200 points, Ratliff = 600 points, Jenkins = 450 points, Hatcher = 150 points, Carter 125 points, Spears = 100 points, Sensabaugh = 50 points, Scandrick = 50 points, Butler 25 points
It's the impact of the salary, cap value and years left under contract that are a big factor. Many wouldn't want or could afford Ware and Jenkins would require an extension for a team to give up a second round pick. I'm sure the values could be highly debated.
People have to get realistic about the defense and the top players, they (key core players) are likely never to see a peak defense again and trading your best for more numbers of players is one way to go. For many reasons aside from playing value Ware is of course the hardest trade presented, the Ring of Honor, the message of trading your best generational player etc. It's still healthy to discuss it and end this daydream that a few draft picks or FA signings could cure the Cowboys defensive problems. Because of bloated or near-term expiring contracts a total starting value over 2000 might not be possible in any combination. Then you have to consider cap savings over forward years of dumping the bigger contracts.