I was going to write about how building a cloud is similar to moving, but the more I think about it, the more I think people are confusing an automated virtual environment with a cloud: IT as a Service is not just about cloud. Having automation does not imply your virtual environment is a cloud or visa versa. Granted, using IT as a Service is important for a cloud if you look at the NIST definition of a cloud, but it is not necessary for a cloud. Perhaps IT as a Service is just a stepping stone towards a cloud, perhaps it should start as a data center play?