In the last quarter-century, not a single quarterback below the age of 29 with multiple Pro Bowls on his resume has been traded. DeShaun Watson is only 25, he's got three Pro Bowls on his record, and he's the second-highest-rated passer in NFL history.
A trade involving Watson would be unprecedented in the modern NFL era. That's not the kind of history the Houston Texans should be willing to make.
There's been chatter for much of the week that Watson is disenchanted with the Texans for various reasons, the most recent being the process the team undertook when hiring new general manager Nick Caserio.