Change Management is an important driver of project success, but the Change Management team does not operate in a box on its own.
Most IT projects have four main teams:
The Project Management team, who focus on running the project
The Functional teams, who work on the business side of the project
The Technical team, who work on the technical aspects of the computer system
The Change Management team, who work with the people side of the project
For the project to be successful, all four teams must work together. No team can function as a silo. Many projects will show the relationship between the teams in the following way:
The preceding figure suggests that the functional and technical teams are in their own silos, with the Change Management and project management teams working separately across them.
However, I believe that the project team is more accurately represented like the following
The preceding figure shows integration among all four teams. Each one influences the activities of the others and none can successfully work on their own.