This report provides a detailed analysis of Diageo's workflow analysis and management practices, particularly focusing on their strategic initiatives to improve efficiency and profitability. The analysis centers on Diageo's redesign of its Human Resource (HR) Operating Model, which involved incorporating technology and restructuring HR operations. The report examines the three phases of the HR model: Service Delivery, Business Partners, and Global, and the changes implemented, including a reduction in staff and a shift in focus towards business performance. It discusses the challenges faced, such as selecting implementation partners and managing scope, along with the lessons learned from these experiences. The report also outlines the Project Perfect Serve (PPS) structure, later renamed First Serve, which was implemented to manage the organizational changes. The overall change processes adopted by Diageo's HR team led to cost reductions and increased proficiency, along with improvements in technology, strategy implementation, and change management.