A leader is someone who is able to influence others and who possesses managerial authority. It is important to channel the activities in an organization since then everything will tend to disperse.
Leaders set objectives for their subordinates to follow them and achieve them for the betterment of the organization; they demonstrate that change is possible by overcoming inertia, leaders increase self-confidence of team members with their considerable influence on people and help them to relies their potential more fully so they help bring out the best in people, leaders guide, support and influence but they do not control and that is why people look up to leaders since they influence people in a positive way but never try to control them with force and leaders can influence others to perform beyond the actions dictated by formal authority.
 Winter, S.G. (1987), “Knowledge and competence as strategic assets”, in Teece, D.J. (Eds),The Competitive Challenge: Strategy for Industrial Innovation and Renewal, Harper & Row,New York,NY, pp.159-84.