It can be defined as follows: Kurt Lewin's three-phase model in a management position. Unlock: Fundamentally the leader must recognize what the constitution needs to change. For this reason these leaders should appreciate the current state of the constitution and the minimal changes. Then it needs to generate strong reinforcement from stakeholders and shareholders. Refreezing: On this occasion, the leader must anchor the established changes directly to the civilization. It should distinguish what kind of obstacles prevent changes. Identify the source of these obstacles and eliminate them. Should make the new change to confirm it with strong support from leadership. Transition: In this season the leader should reap the benefits despite not being feasible and explain how the changes affect others. Prepare and empower the employee to recognize the change. Make a decision immediately with complications and answer questions responsively, it should include requesting people in that process. (Elias.s,