All Sailors and Navy civilians, at one time or another, must act as leaders and followers. Leaders are not always designated by position, rank, or authority. In many situations, it is appropriate for an individual to step forward and assume the role of leader. It is important to understand that leaders do not just lead subordinates—they also lead other leaders.
Everyone in the Navy is part of a team, and all team members have responsibilities inherent in belonging to that team.
(Actually taken from Army FM 6-22 Army Leadership. They have it right)