Having Dak Prescott come in and take the starting QB slot in the wake of an injury to Tony Romo and then refuse to surrender the position once the veteran returned is generally viewed as a positive sign for the Dallas Cowboys. However, one national writer is quick to point out that no matter how strong his rookie outing, Prescott is still a mere mortal and the possibility exists that his success could be an anomaly once teams around the NFL get a good book going on him.