This report provides a comprehensive analysis of leading lean projects, specifically within the context of the FIFA 2018 World Cup. It begins by defining and discussing key concepts such as the Voice of the Customer (VOC), Critical to Customer Requirements (CCR), and Critical to Quality (CTQ) parameters, essential for understanding customer needs and expectations. The report then explores the practical implementation of lean project management principles, including value stream mapping, waste reduction, and the adoption of pull approaches. Furthermore, it examines the application of established project management methodologies, including PMBOK, PRINCE2, organizational project management, Agile practices, and Lean Six Sigma (DMAIC methodology), to support and enhance lean project implementation. The report concludes by offering insights into how these various frameworks and methodologies can be integrated to effectively manage and deliver a large-scale event like the FIFA World Cup, ensuring efficiency, customer satisfaction, and the successful achievement of project goals.