This document discusses the understanding and leading change in organizations. It compares two organizations, Marks & Spencer and NEXT plc, and analyzes the drivers of change. It also explores the ways in which internal and external change drivers affect leadership, individual, and team behaviors. The document provides insights into measures for minimizing the negative impacts of changes on organizational behavior and evaluates the effectiveness of different leadership approaches and models of change management. It is a valuable resource for students studying Understanding and Leading Change.