Effecting change in an organization depends on a number of roles:
Advocates— Project leaders often advocate project process changes. As an advocate, you recognize a need for change, develop a business case, and use consensus building for your ideas to gain sponsorship.
Sponsors— Project changes are generally sponsored by managers of project leaders, after advocates show that change is desirable.
Agents— Change agents manage the project to develop and introduce the new process.
Targets— The individuals who are affected by the change need to be persuaded to modify how they work.