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 tight end, and due to coaches and teammates saying "he has killer speed," his nickname on the Bills was "Killer." That was the source of the "K" in "K-Gun."