Let’s say a client asks us what time it is,” Balloun offered. “If you ask Booz Allen, their response will be ‘What time do you want it to be?’ If you ask A. D. Little, who are a little more technical, they will tell you that ‘It’s 9:45:20, Greenwich mean time.’ But if you ask McKinsey, we will say, ‘Why do you want to know? What decisions are you trying to make for which knowing the time would be helpful?’”