/ˈkwɔːrtərˌbæk/
NOUN
A player positioned in the offensive backfield who receives the ball at the start of a play and directs the team's offensive actions, typically by passing, handing off, or running with the ball.
The player responsible for directing offensive plays, communicating instructions, and coordinating the team's actions during an American football game.
The quarterback's role as the on-field decision-maker who reads defensive formations, calls or adjusts plays, and coordinates offensive execution.
VERB
To organize, coordinate, manage, or take responsibility for directing an activity, project, or group toward a particular goal.
To take charge of an undertaking by organizing its activities, coordinating participants, and directing the work toward completion.
To guide a group, coordinate its members, and take responsibility for ensuring that collective activities are carried out effectively.