The document discusses leadership theories and change management strategies adopted by the A.S. Watson Group as it transformed from a small medical shop to a global retailer. It analyzes how the group used functional leadership theory and transactional theory to guide employees. It also examines how prospect theory and expected utility theory helped the group achieve goals by motivating risk-taking. Key change management activities included expanding branches, implementing effective supply chain management, and providing employee training, which helped smooth transitions and attract customers. Overall, the document evaluates how the group's leadership approaches and strategic decisions enabled it to successfully adapt and flourish in an increasingly competitive global market.