The Dallas contingent arrived in Seattle with open ears about that possibility. History has shown there might be reason, at least, for them to have hope.
Last year, the Seahawks traded for left tackle Duane Brown right after playing his old team, the Texans. This time, the Cowboys could trade for Thomas right after playing Seattle. Former Seahawks defensive coordinator Kris Richard has called plays for the Dallas defense this year and he's a huge Thomas fan.
And while they did trade a package that included a future second-rounder for Brown before locking him up long-term, he's not the player Thomas is. Thomas is a perennial Pro Bowler in his prime, and the fact that Seattle turned down a second-rounder for him indicates they need to be blown away to trade him. Thomas sat out training camp hoping for a new contract.