Veteran players giving pointers (which is not really tutoring) to rookie players on the sideline is great, but it is the coaches who are getting paid to develop the players; that is literally their job; it is not the starter QB's responsibility to make sure the backup QB is ready to play should he get hurt, it is the coaches' and the backup QB's responsibility to make sure the backup QB is ready, and getting pointers from the starter on the sideline is not going to cut it.