Leadership and Change Management INTRODUCTION 1 Executive Summary: 1 Task 1) 1 Explain appropriate change management theories espoused by Lewin involving forcefield analysis and three step theory.1 The difference between various models such as, Lewin's change management model and Kotter's model are as follows: 5 Kotters model for Sungard Availability Services 1 CONCLUSION 2 REFERENCES 3 INTRODUCTION To grow the business successfully in intense competitive world leaders plays vital role in an organization. Executive Summary: In this report