"We're working in the converged world of green IT, a big part of which is saving not just costs but the planet in any which way we can," says Oberoi, most recently head of security/governance company Aveksa. "But the real theme around what we do is finding a way to make the physical realities of the data center more available and optimized so that businesses can become more agile in their business processes."

In other words, extending the flexibility found in virtual/logical networking to the lower end of the IT stack.

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Viridity, which Network World named as one of its , has indeed proven to be worth watching. In March, the company launched its first tool, called , which is designed to give organizations a much better feel for how much power their IT gear is using and how to most efficiently set things up  (The software features discovery, mapping, monitoring and reporting capabilities.). Viridity then released an even simpler tool called during the fall.  What's more, Viridity added $8 million in venture funding to its coffers over the summer (it raised $7 million in Round A funding).

Viridity also named IT security industry veteran Robert Steinkrauss as its CEO over the summer, but he recently resigned due to health concerns.