What is Planner's Role?
The planner is a catalyst who chairs the planning activity, and therefore is not an individual who knows every aspect of the project, but is an individual who can organize the thoughts of various people.
The planner must also be a person that can effectively communicate the milestones and goals of the plan, and reporting back to the people who provided various schedule elements, keeping in mind that these individuals will implement the plan and will directly affect the profitability of the project. The key to an effective plan is the success and adaptability of the planner to collect, organize, and translate the schedule activities into an easy to understand format.
(Reference: Kirk D. Gothand, CCC, 2003)