Getty Dallas Cowboys quarterback Dak Prescott. Every single year, a handful of the NFL’s biggest stars reach such a contentious point in offseason contract negotiations they decided to add to the spectacle and request trades. It’s mostly performative because, historically, unlike the NBA, the very best players in the NFL just don’t get traded. No matter how many times they ask. Until this week, that is. That’s when the Dallas Cowboys upended the apple cart and traded 26-year-old edge rusher