"Trying to train a quarterback in the fire … that's not the way you get it done," said Charley Casserly, who consulted Johnson in his search for a new coach and general manager two years ago. "You got to get it done in the offseason and bring him in and build him up. That's the ideal way to do it. Obviously, they're going to play (Petty) for four games and see how he progresses and then make the decision."