This document provides an overview of change management and business process reengineering (BPR). It defines key change management concepts like the three steps to change - unfreezing, changing, and refreezing. It also discusses what motivates change in organizations. The document then reviews BPR, including definitions, case studies of successful BPR implementations, and critical success and failure factors. Finally, it presents a case study of Croydon Council that underwent a BPR initiative to consolidate its HR functions, resulting in improved performance metrics and cultural changes.