Project Expediter Vs Project Coordinator
You may not work in a projectized or strong matrix organization where you have full authority and access to resources. Your organization could be a balanced matrix functional organization.
In a balanced matrix, you have to request the resources for your project.
In a functional organization or weak matrix organization, your authority is reduced further, and your role can be a project coordinator or a project expediter.
You can have project coordinators or project expediters in a projectized or strong matrix organization for larger projects. They will report to the project manager or management but they will have limited authority.