What I learned was that, after 4 games, Dak is more mature, focused, poised, and committed to winning than Tony Romo was after 5 years in the league.
Dak does not make impulsive throws with the game on the lines, he takes great care of the ball. He understands the big picture so he will never make a comment to the effect that losing a playoff game isn't that big of a deal in a person's life.
Dak won't take a trip down to a beach resort during a playoff bye. He won't have a celebrity girlfriend show up at a game to create publicity and add incentive to an opponent.
Dak is never going to be told that he has to take a leadership role with the team. He is a leader today and no one is going to have to teach him