a limited time. This strategy proved to be very effective in limiting substitutions, creating fatigue in the opposing defense, creating play-calling issues for the defense, and various other advantages. The Bengals' regular employment of this offense was extremely effective. The employment of this version of the "no-huddle" propelled the Bengals to their second appearance in the Super Bowl. The Buffalo Bills, defeated in the AFC Championship game by the "no-huddle" Bengals, soon adopted this approach. Under head coach Marv Levy and offensive coordinator Ted Marchibroda, the Bills were the first team to truly adopt the no-huddle offense, and with Jim Kelly quarterbacking the no-huddle "K-Gun" offense, the Bills became the only team in NFL history to appear in four consecutive Super Bowls, from 1991–1994. The Bills are considered the only team to ever use the no-huddle offense consistently and completely throughout an entire game for several seasons. This means that the "K-Gun" offense always used the scheme as their primary offensive philosophy. Quarterback Jim Kelly would call and signal the plays himself on the field throughout the entire game. That is a unique achievement that has never been truly duplicated, therefore, the "K-Gun" offense earned a reputation as the most famous and complete hurry-up offense in football. The "K-Gun" offense is commonly thought to be named after quarterback Jim Kelly, but was actually named for Keith McKeller, a , dual-threat tight end. McKeller was an exceptionally fast and agile tight end, and due to coaches and teammates saying he had "killer speed", his nickname on the Bills was "Killer", which was the source of the "K" in "K-Gun". In recent times Peyton Manning, with the Indianapolis Colts and later the Denver Broncos, was best known for this technique, frequently changing the play at the line of scrimmage depending on the coverage that he saw from the opposing defense. In 2013, Chip Kelly became head coach of the Philadelphia Eagles and adapted the hurry-up offense that he used effectively at Oregon to the NFL. During the 2014 season, the Eagles averaged around 22 seconds per play, which is the fastest time of any NFL team since this statistic has been kept. In the college game, the hurry-up/no-huddle was employed several times successfully by Auburn coach Gus Malzahn to defeat Nick Saban and the Alabama Crimson Tide. Saban grew frustrated and tried to have the game slowed down to allow his defense