This assignment explores the concept of organizational change management through a case study of Vodafone and BT Group, two prominent telecommunication companies in the UK. It examines the impact of internal and external drivers of change on the companies' strategies, operations, and leadership decisions. The assignment analyzes the different barriers to change and applies appropriate leadership approaches and models to evaluate the effectiveness of change management initiatives. By delving into the complexities of change management in these organizations, the assignment provides valuable insights into the challenges and opportunities associated with leading change in a dynamic business environment.