This article discusses the importance of change management in improving the operations of a firm and maximizing long-term profitability. It explores Kurt Lewin's model of change management and its application in Tesco. The article also examines the interrelationship between change management and organizational design, as well as the different types of changes that can affect organizational design. The complex relationship between organizational design and change management is critically evaluated, highlighting the role of HR in managing and adapting to change.