Quarterback

A quarterback (QB) is a position in American and Canadian football. Quarterbacks are members of the attacking team. They line up directly behind the center, in the middle of the attacking team's line. A quarterback is usually the leader of the attacking team, and starts most plays. In addition, the quarterback gives commands to the other players before the start of a play. A quarterback will in most attacking plays throw the ball to a member of their team, ready to run to the end of the pitch. These players are usually the faces of their respective teams. Some very notable players at this position in history are Brett Favre, Joe Montana, and Johnny Unitas.

Positions in American football and Canadian football
Offense			Defense			Special teams
Linemen	Guard, Tackle, Center		Linemen	Tackle, End, Nose tackle		Kicking players	Placekicker, Punter, Kickoff specialist
Quarterback			Linebackers			Snapping	Long snapper, Holder
Backs	Halfback, Fullback, H-back		Backs	Cornerback, Safety		Returning	Punt returner, Kick returner
Receivers	Wide receiver, Tight end, Slotback			Nickelback, Dimeback		Tackling	Gunner
Formations - Nomenclature