This report delves into the intricate world of operations management, exploring the distinct roles of leaders and managers within the context of Tullow Oil Plc. It examines various leadership theories, including situational, systems, and contingency leadership, and analyzes how these theories are applied in practice. The report then shifts focus to Amazon (UK), providing a detailed analysis of the operations management approach employed by the company, including Six Sigma, Total Quality Management, JIC, and JIT. It further explores the key outside factors that impact operations management, such as political, economic, social, technological, legal, and environmental factors, and how these factors influence decision-making for a store manager. The report concludes by highlighting the importance of effective leadership and management in driving organizational success.