Flexbone Formation

The flexbone formation is an offensive formation in American football that uses a quarterback, five offensive linemen, three running backs, and varying numbers of tight ends and wide receivers. The flexbone formation is a predominant running formation derived from the wishbone formation and it features a quarterback under center with a fullback lined up directly behind the quarterback. There are two smaller running backs called slotbacks aligned behind the line of scrimmage on each side of the offensive line. The slotbacks are sometimes incorrectly referred to as wingbacks. But, in order to be a wingback, there must be a guard, tackle and tight end all on one side of the center on the line of scrimmage and then the wingback off the line of scrimmage (as featured in the unbalanced formation diagram).

Air Force Academy Head Coach Fisher DeBerry was once quoted as saying "we need to be more flexible in the Bone." Hence, the term "Flexbone" was born. The design of the formation itself, however, was not created by Fisher DeBerry. The flexbone is a literal carbon copy of the Double Slot formation that Glenn "Tiger" Ellison had created over two decades before the flexbone was born. Incidentally, the option-style running game in the flexbone is based entirely around the Cowboy and Gangster series' of Ellison's Run-and-Shoot playbook.