This case study examines the leadership and management practices of Marks & Spencer, a leading UK retailer. It analyzes the roles of managers and leaders in achieving organizational objectives, focusing on operational efficiency and sustainability. The study explores various management theories and approaches, including situational leadership, systems leadership, and contingency leadership, and evaluates their strengths and weaknesses in the context of M&S. It also investigates the impact of external business environment factors on operational management decisions and how these factors affect the wider business environment and community. The study concludes with recommendations for future improvements to be taken by the organization.