Disappearance of Corporate IT?

In CIO Mag, combative pundit Nicholas Carr predicts that corporate IT will be largely replaced by cloud services. Have not yet read the book whose premise this article outlines:

The Disappearance of Corporate IT
Controversial author Nicholas Carr says the network--the Internet, that is--has become, literally, our computer.

First Nicholas Carr dropped a bombshell of a book, Does IT Matter? Information Technology and the Corrosion of Competitive Advantage, which argued that corporate IT is increasingly becoming a commodity. Now he's back with a provocative new tome, The Big Switch: Rewiring the World, From Edison to Google (W. W. Norton, 2008), wherein he makes the case that IT as we know it may disappear completely ... "