Projects, especially IT projects, can be very powerful vehicles for change. They can bring change to an individual, an organization, or to an entire community. Projects can be vehicles for desired changes, or required projects can bring changes that must be adapted to. Project management can be thought of as change management from the perspective that a project is simply a series of changes that combine to make the whole. From this perspective, part of the basis of project management theories are existing change management theories. A theory of change refers to the processes by which changes come about. Within an organization, changes can be considered as organizational change. Therefore, project management at that level is organizational change management. In fact and practice it is difficult to completely separate organizational change management from project management. Andrews, Cameron, and Harris (2008) write, “The skills and knowledge which managers found most useful were those that enabled them to "make sense" of the organizational change” (p. 300).