This article discusses the different roles and characteristics of a leader and manager in operations management at Tesco. It explores the functions of a manager, such as planning, organizing, directing, and staffing, and the importance of leadership in achieving business objectives. The article also evaluates different theories and models of approach, including situational leadership, contingency theory, and system leadership. Additionally, it highlights the importance of operations management in the company and the approaches used, such as lean production and six sigma.