This report delves into the intricacies of leadership and change management, using Tesco as a case study. It explores various aspects, including the impact of structural changes on organizational strategy and operations, comparing different approaches and their implications. The report analyzes internal and external drivers of change, such as SWOT and PESTLE analyses, and their influence on team and individual behaviors. It also evaluates the measures that can be taken to mitigate the negative impacts of change on organizational behavior, examining the Burke-Litwin model. Furthermore, the report investigates barriers to change and their impact on leadership decision-making, utilizing force field analysis. Finally, it assesses different leadership approaches, evaluating their effectiveness in driving organizational change and applying various models and frameworks to the context of Tesco's operations and strategies.