Peter Drucker

Provocative as usual in this Fortune interview.

I believe you should outsource everything for which there is no career track that could lead into senior management. When you outsource to a total-quality-control specialist, he is busy 48 weeks a year working for you and a number of other clients on something he sees as challenging. Whereas a total-quality-control person employed by the company is busy six weeks a year and the rest of the time is writing memoranda and looking for projects.