What are the key Infra decisions?

It is getting increasingly difficult for enterprise CIOs to determine the IT infrastructure outsourcing and multisourcing decisions. Whom and Why it should be outsourced coupled with the sledgehammer task of finding out the right vendor for the job, has stolen the wink out of them. Read the report of a well known US based multinational; how it managed to take the decision and what were the factors they considered before doing so.