Washington Commanders head coach Dan Quinn is thrilled with the progress Jayden Daniels has made this offseason. On Tuesday, Quinn raved about his rookie quarterback. “This guy came in with really excellent football characteristics, in terms of command and huddle and vision,” Quinn said. “What you probably don’t see is the amount of offense and defense that the coaches put in. “For him, to absolutely nail that and go early and say, ‘I have that. I have it.’ There was a lot of work put in from the studying spot. Not only do the physical traits show up, it’s the work ethic. Through the season, y…