This report delves into the multifaceted aspects of understanding and leading change within organizations, using Unilever as a case study. It explores the impact of organizational changes, such as technology implementation, mergers and acquisitions, changes in organizational culture, and leadership shifts, on a company's strategy and operations. The report examines internal and external drivers of change, including PESTLE and SWOT analyses, and their influence on leadership, team, and individual behavior. It also investigates various barriers to change and their impact on decision-making. Furthermore, the report discusses strategies to minimize the negative impacts of change on organizational behavior, such as Kotter's change management model, and different leadership approaches. The analysis provides insights into how businesses can effectively navigate and manage change to achieve their goals and maintain a competitive advantage.