This report delves into the realm of organisational behaviour, using Tesco as a case study to illustrate key concepts. It begins by differentiating between effective and ineffective teams, highlighting the characteristics that contribute to each. The report then explores the application of organisational behaviour philosophies, specifically focusing on path-goal theory and Maslow's hierarchy of needs, to understand how leaders can motivate employees and guide them towards achieving organisational goals. Different leadership styles, such as supportive, directive, participative, and achievement-oriented leadership, are discussed in the context of their impact on employee performance. The report also touches upon Tuckman's theory of team development, providing insights into how teams evolve and how managers can facilitate this process. The overall aim is to provide a comprehensive overview of how organisational behaviour principles can be applied to enhance team performance and achieve organisational success, using Tesco as a practical example. This report serves as a valuable resource for students studying leadership and management, providing real-world examples and actionable insights.