" I have often been asked to explain the methods I use in choosing executives, because much of the success of my organization has been a result of the kind of people I have picked for key positions. My answers aren’t very satisfying; they don’t sound much different than the rules that students of business administration find in their basic textbooks. It’s hard to come up with real answers because the weight of the judgment is not in the rule but in the application. As a result, I have sometimes been accused of being arbitrary. "

― Ray Kroc , Grinding It Out: The Making of McDonald's