Thought Leader
Thought leaders portray a vision of what the future could look like, which is also an activity undertaken by change agents. The principle difference between a thought leader and a change agent, is that a thought leader will inspire others with their ideas but not necessarily follow through with actions to turn the ideas into reality. A change agent also has a role to play in inspiring others, but then will continually influence and persuade others to take the ideas forward. If necessary, a change agent will change their approach, even modifying the idea to overcome resistance and maintain progress towards the transformational goal.
Line manager
A line manager has direct control over the individuals who work for them. Whilst they have an important role to play in acting as agents to make changes happen, they typically achieve this using command and control approaches such as assigning tasks to their staff and setting targets for achievement. Change agents typically do not have line management authority over individuals, and use persuasive techniques to influence the required changes in attitudes, behavior, and culture. These techniques used by change agents are often more successful in transformational changes than the command and control techniques typically used by line management, as they change the hearts and minds of individuals to support the change.
OCM lead
The OCM lead role is responsible for the success of the full OCM process. This is a management role, with ownership of the OCM process, and other OCM roles reporting into them. The change agents for the transformation will report into the OCM lead. The OCM lead will set the strategy for organizational change management, which the change agents would then follow. Change agents can exist in isolation in an organization without a formal OCM approach and hence without any OCM lead.
OCM practitioner
OCM practitioners execute the OCM strategy as set by the OCM lead. A change agent can be one be an OCM practitioner, working principally on change agent activities. Other OCM practitioners may act as supporting agents of change, but their activities are likely to be primarily focused in other areas such as education and stakeholder management.
OCM sponsor
Having an OCM sponsor is key to successful change. This role should be actively involved with the transformation, regularly communicating positive messages about it, gaining feedback, and ensuring understanding. This is also true of a change agent, and in some ways, an OCM sponsor is also acting as one of the agents of change. The roles can sometimes be combined, however, an OCM sponsor is often held by a senior figure in the affected organization, whereas a change agent does not require that level of authority. Combining the roles of change agent and OCM sponsor can be problematic, as individuals might to the outside seem compliant to the changes because of the level of authority of the change agent/OCM sponsor, whilst in reality, they are resistant to the changes.