Sean Payton found Bo Nix on the practice field Wednesday morning and delivered the news that’s been coming for days, weeks, maybe months. You’re the guy. Nix, the No. 12 pick in April’s draft, has been named Denver’s starting quarterback and will make his regular-season debut Sept. 8 at Seattle. Payton informed Nix and fellow quarterbacks Jarrett Stidham and Zach Wilson of the decision Wednesday morning before telling reporters after practice. He went around to each of the three during pre-practice stretching and told them that Nix had won the job. The way Payton and Nix tell it, their exchange was more business-like than ebullient. “He smiled and he was good.