Workload management tools for data centers vary widely, and no two are alike. So which one does your data center need?
The approach you use to optimize your mainframe is completely different from the cloud workload management embraced by someone else. Sometimes it's as simple as the difference between batch processing and real-time, or as involved as choosing separate hardware to handle specific workloads.
These questions will shed some light on your familiarity with workload management tools and what you need in your data center.