Consolidating project schedules
They fail to comprehend the underlying nature of such project plans.
They are useful for measuring whether the project is on the right track, or not.
It provides a preliminary delineation of roles and responsibilities and project goals.
It also identifies main stakeholders, and sets project milestones in a broad way.
But now, as we already are aware Project management plan itself is also a subset of project plan.
Generally, the key stakeholders of any project are those who are likely to be impacted by the project development flow and its end.