A point of clarity, please.
Planning, scheduling, and track of project status are clearly closely linked. They also require a link to knowledge about resources. Other than supporting the ability to plan, schedule, and promise projects, what other purpose does the "resource management" process involve?
I fear that different things that might be included in that process beyond the aforementioned support of project delivery run the risk of adding unnecesary (at best) or conflicting (at worst) processes that consume management time and attention.
What do we really mean (and really need) when we say "resource managment?"