This report delves into the intricacies of organisational behaviour, using TESCO as a case study to illustrate key concepts. It begins by analysing how organisational culture, politics, and power dynamics influence individual and team behaviours and performance. The report then critically evaluates various motivational theories, such as Herzberg's Two-Factor Theory and Locke's Goal-Setting Theory, within the context of the organisation. Furthermore, it differentiates between effective and ineffective teams, emphasizing the importance of cooperation. Finally, the report examines various concepts and philosophies used in organisations to address diverse situations, providing recommendations for improvement. The analysis covers aspects like power culture, role culture, task culture, and person culture, along with their impacts and the role of organisational politics. The report also highlights how TESCO utilises different power dynamics and motivational techniques to enhance employee performance and achieve organisational goals.