the last NFL team to switch to the T. Runningback Austin Horton also rushed for 1,245 yards during the Sutherland season. Double wing The double-wing is an offensive formation which should not be confused with the Double Wing offense. The double-wing formation is used in many offenses from the youth level through college. The formation was first introduced by Glenn "Pop" Warner around 1912. Just a few offenses that use the formation are the double wing, flexbone and wing T offenses. It was the primary formation used by Ara Parseghian when he ran the wing T at Notre Dame, winning National Championships in 1966 and 1973. The formation is not necessarily the same in all offenses and is often a broad term to describe any offense with two wingbacks. In the wing T, the double-wing formation is used to refer to Red, Blue and Loose Red formations. The double-wing formation in American football usually includes one wide receiver, two wingbacks, one fullback, and one tight end. Single-wing style of play The direct snap or toss from the center usually went to the tailback or fullback; however, the quarterback could also take the ball. The tailback was very important to the success of the offense because he had to run, pass, block, and even punt. Unlike today, the quarterback usually blocked at the point of attack. As with his modern-day counterpart, a single-wing quarterback might also act as a field general by calling plays. The fullback was chosen for his larger size so that he could "buck" the line. This meant that the fullback would block or carry the ball between the defensive tackles. The wingback could double-team block with an offensive lineman at scrimmage or even run a pass route. The single-wing formation was designed to place double-team blocks at the point of attack. Gaining this extra blocker was achieved in several ways. First, the unbalanced line placed an extra guard or tackle on one side of the center. Second, a wingback stationed outside end could quickly move to a crucial blocking position. Third, the fullback and especially the quarterback could lead the ball carrier producing interference. Finally, linemen, usually guards, would pull at the snap and block at the specified hole. Line splits were always close except for ends who might move out from the tackle. The single-wing formation depended on a center who was skilled both at blocking