Which management theory reviews the differences between managers and leaders?

The management theory that reviews the differences between managers and leaders is associated with John Kotter. Kotter's work emphasizes the distinction between management and leadership, where managers focus on organizing, planning, and executing tasks to achieve a company's objectives, while leaders are more concerned with inspiring and motivating their teams to embrace change and achieve a common vision.

Kotter's insights are particularly valuable in helping organizations navigate change effectively, as he delineates the unique roles and functions that both managers and leaders must fulfill for an organization to succeed. This understanding is crucial in developing effective strategies for leadership and management in various contexts.

The other individuals and concepts listed, while valuable in their own right, do not specifically focus on analyzing the differences between management and leadership in the same way that Kotter does. They may address aspects of leadership, productivity, or principles but do not concentrate on that particular comparative analysis that Kotter is known for.