Sanchez's coaches spent years trying to get him to stop forcing the ball downfield, with no success. It was seen as his biggest weakness all the way through his recruitment out of high school and his college career. It continued to be a problem during his rookie year.
But after 3 years of Schotty/Cavanaugh, there are now people that see him as a guy afraid to take shots down the field. Every player has their own natural tendencies. It would take very little encouragement to get Sanchez to start throwing downfield again. But Rex thinks it is more important to avoid turnovers than to put points on the board.