This document discusses the roles and characteristics of leaders and managers in operations management. It explains the importance of trustworthiness and creativity in a leader, and critical thinking and leadership skills in a manager. It also explores various theories and models of approach, such as contingency leadership, situational leadership, and system leadership. Additionally, it highlights key approaches to operations management, including lean production, six sigma, and total quality management. Finally, it emphasizes the values and importance of operations management in achieving business objectives.