This reminds me of an article on management that was linked to somewhere on OB:

The strange thing about my utter lack of education in management was that it didn’t seem to matter. As a principal and founding partner of a consulting firm that eventually grew to 600 employees, I interviewed, hired, and worked alongside hundreds of business-school graduates, and the impression I formed of the M.B.A. experience was that it involved taking two years out of your life and going deeply into debt, all for the sake of learning how to keep a straight face while using phrases like “out-of-the-box thinking,” “win-win situation,” and “core competencies.” When it came to picking teammates, I generally held out higher hopes for those individuals who had used their university years to learn about something other than business administration.