and at tossing the ball from between his legs to the receiving back. The center had to direct the ball to any of several moving backs, with extreme accuracy, as the play started. Single-wing plays would not work effectively if the back had to wait for the snap because quick defensive penetration would overrun the play. The center was taught to direct the ball to give the tailback or fullback receiver a running start in the direction that the play was designed to go. The single-wing formation was a deceptive formation with spectators, referees, and defensive players often losing sight of the ball. A backfield player, called a "spinner", might turn 360 degrees while faking the ball to the other backs, or even keeping the ball or passing it. Defensive players were often fooled as to which back was carrying the ball. The one play that was unique to the single-wing formation was the buck-lateral series. The terminology for this series of plays associates the word "buck" with the intent of the fullback to plunge into the line. In addition, the short toss, or lateral of the ball, can be made to the quarterback or wingback who may take the ball and do other maneuvers including passing the ball. Consequently, when the fullback takes the ball, he appears to be headed to buck the line. Typically, fullbacks were bigger players who ran plays intended to smash the defensive front. The fullback's initial move pulls the defensive players toward the expected point of attack. Next, the fullback tosses the ball to another back causing the defense to change pursuit angles, thus losing a step in their catching the ball carrier. The strong side of the formation, where the extra lineman and wingback lined up, put pressure on the defensive end. Defenses might move extra players to that side or shift the whole defense to compensate. The cut-back play could succeed regardless of how the defense reacted. The cut-back play started like a strong side sweep with offensive guards and quarterback running interference for the tailback. The fullback would fake a smash over the guard hole to occupy the defensive tackles. The play was designed to make the defensive end overreact and try to stay outside to contain the runner. If the defensive end gave ground to the sideline, the tailback would cut-back inside to let his interference push the defensive end