Cloud computing, and other technologies, do enable users to do more with less IT involvement. These architectural shifts should also shift resources from commodity infrastructure to high-value work.
If Cloud Computing is changing an IT group’s mission, than the mission has been wrong. Even the name IT puts the emphasis on “Technology”.
IT should (and will) continue to evolve into IS — Information Services — which focuses on meeting the informational and operational needs of the users (i.e. the business) rather than on the technology used to deliver the services.