"There are “situations that come up in every game: a third down and one in the fourth quarter or a third down in the red zone to force a field goal,” he told me. “Offensive coördinators usually have a couple of calls they feel they can win these situations with. They won’t run the play the same as you’ve seen it [on film], so being able to decipher a shift or a motion or a change in personnel is usually necessary. The smart players can do that consistently.”