McKinsey probably have the most analyzed, overdeveloped and optimized system to run a business in the world. Bring people in on the cheap (partly because they'

McKinsey probably have the most analyzed, overdeveloped and optimized system to run a business in the world. Bring people in on the cheap (partly because they're being paid in prestige), fly them around the country on miles you've prebought, work them really hard for a few years, and nurture them as they move on as future customers seems to be working out pretty well for them.