This article discusses the role of leadership in introducing and sustaining change in organizations, using Tesco as a case study. It also evaluates how theories such as the ADKAR model and the McKinsey 7s model assure successful change management. The article provides insights on how leadership can provide strategic directions and motivate employees to accept and work with new technologies. It also highlights the importance of generating awareness, determining employee needs, providing knowledge, and reinforcing teams to ensure successful change management.