Which brings me back to Dak Prescotts play against the Rams. There was nothing that sophisticated about the concept: The Cowboys called an inside zone run play, in which they blocked all of the Rams frontal defenders, including the backside defensive end (i.e., no read option element), and tasked Prescott with reading the safety to the side of the single receiver, who just happened to be Dez Bryant. Now, Im not sure if Bryant was only allowed to run a fade or had some sort of choice in what route hed run (either choosing on the fly or via a pre-snap signal between receiver and QB), but teams often adjust the route by the single receiver to find the way to best attack the safety.
In any case, given that it was Dez Bryant singled up, all Prescott really needed to confirm was that the safety wouldnt be able to help, something he was able to do quite quickly and likely even pre-snap. (A savvier safety might have aligned inside and then hurried back outside; Prescott did stare down Bryant a bit.) And with an extra safety stepping up for the run and a freak of nature 1-on-1 near the goal line, Prescotts choice was simple: