An offensive coordinator is a member of the coaching staff of an American football or Canadian football team who is in charge of the team's offense. Generally, along with the defensive coordinator, he represents the second level of command structure after the head coach. The offensive coordinator is in charge of the team's offensive game plan, and typically calls offensive plays during the game, although some offensive-minded head coaches also handle play-calling. Several position coaches work under the coordinator (position groupings can include quarterbacks, wide receivers, offensive line, running backs, and tight ends). The coordinator may also coach a position (typically quarterbacks).