“I think when you’ve played this game for so long, you’ve just got to know when to say when,” McNabb said. “You get to later in your career and you want to win a championship. You don’t want to go through a rebuilding phase. You don’t want to be kind of a stop-and-shop guy. You want to go somewhere where you can kind of get settled. And I just felt like my best move was to go on to my next phase.