‘”It’s so the center can keep his eyes on the defense,” Levitre said. “If they’re in shotgun and the center has to look between his legs to see the leg-lift, then either the guards have to make the [line] call or the center has to see what’s changed when he brings his head up. Sometimes the defense will rotate once the center puts his head between his legs. The ‘backers will move. So if the center is blocking a certain guy, he’ll look up and think, ‘Where’d he go?’ By doing it this way, the center can keep making the call. The leg-lift means the quarterback’s ready for the ball.”‘