The essence of my work is coming into daily contact with innovative technologies. A recent example was at the request of a partner company who wanted to answer- which one of these tools will best solve my virtualized datacenter headache? After initial analysis all the products could be classified as tools that troubleshoot VM sprawl, but there was no universally accepted term for them. The most descriptive term that I found was Virtual Resource Manager (VRM) from DynamicOps. As I delved deeper into their workings, the distinction between VRMs and Private Clouds became blurred. What are the differences?