H-back

An H-back is an offensive position in American football. The H-back lines up similarly to a tight end, but is "set back" from the line of scrimmage, and is thus counted as one of the four "backs" in the offensive formation. The H-back, while similar in name, should not be confused with "halfback" or "running back", which are used to denote a separate, primary ball-carrying backfield position. The position was made notable in the National Football League (NFL) by the Washington Redskins under head coach Joe Gibbs, who ran a two tight end system. The position was named F-back when used later in Norv Turner's offensive system. The position is similar to that of a slotback.

The name H-back can be confusing, because the H-back rarely carries the ball as running backs do; instead, the H-back plays a position similar to a tight end. The name stems from the playbook notation in use at the time the position was developed. Under the system used by Joe Gibbs (and indeed, by many teams then as now), the standard set of eligible ball carriers consisted of three receivers and three backs. The three receivers, the split end, tight end, and flanker, were labeled "X", "Y", and "Z" on play diagrams. The three backs, quarterback, halfback, and fullback, were labeled "Q", "H", and "F". Gibbs' innovation was to move one of the backs up near the line of scrimmage, to act as an extra tight end. At the time the system was developed, the best running back on the Redskins' roster was John Riggins, a fullback. Since Riggins and quarterback Joe Theismann were vital to the team at the time, the lesser used halfback was removed and replaced with an extra tight end. The standard notation was retained; however, this new tight end was still assigned the "H" symbol on play diagrams, hence the name "H-back" for the position. Like a flanker, the H-back was set back from the line of scrimmage, and the role was often played by an athletic tight end. The H-back often has to be versatile; as a backfield member, they can be lined up to act as a lead blocker on running plays. However, the H-back also fills the roles of a traditional tight end, catching passes over the middle and pass blocking when needed.

In the Redskins offensive system, the H-back is asked to block, pass protect, and run receiving routes from multiple sets. This compares to the standard tight end which was used primarily as an extra blocker on Washington offensive line. The H-back can line up in the backfield, on the line, or is put into motion. Because of the complexity of the position, a thorough knowledge of the offense is desirable in an H-back. The position, indeed the entire two tight end offense, was created by Gibbs as a direct response to Lawrence Taylor, the New York Giants' dominant linebacker. As Gibbs stated, "We had to try in some way have a special game plan just for Lawrence Taylor. Now you didn't do that very often in this league but I think he's one person that we learned the lesson the hard way. We lost ball games."

...
Wikipedia