Excerp from DC.com Mailbag:
KEVIN HUNT
PAMPA, TX
Question: The Cowboys have had several instances over the years of letting underperforming players go, only to have them thrive with other teams. Is it perhaps a player evaluation problem leading to this? Martellus Bennett is the latest.
Answer - Josh: So let’s go over all these guys who have left and begun to thrive with other teams in recent years: Marty B. (so far), Stephen Bowen (who was pretty good as a Cowboy), Chris Canty (sort of). There it is, that’s the list. The player evaluation problem with Bennett was back in the 2008 draft, when they thought he would be a weapon as Jason Witten’s sidekick. He wasn’t, and the Cowboys should have zero regrets about him moving on four years later.
That about sums it up!