“If I am a capacity planner, then I am always looking for optimal functionality, but really, what do I do?”
Who is a capacity planner? A capacity planner gathers performance data and measures the output to determine optimal fit within the production scheduling. A person in this position is normally at the business unit level, but there are enterprise level capacity planners that look at the whole organization, such as Resource Forecasters or Resource Estimators. A business unit capacity planner may be called a Performance Manager or a Performance Engineer among other titles, but who are they really? Every job is more than just a title.