When Jack Welch explained his view on management he used to draw a company structure against the common understanding upside down. His explanation went somehow like that:

What We Know About the Moment of Truth
Best Practices
Gemba is the place where your product or service is received and applied. You cannot learn about the Moment of Truth, the usage of your offerings and how well you are able to meet customers’ expectations by conducting an annual survey or by issuing some evaluation forms. CEOs like American Express’ Kenneth Chenault know about this. He is said to spend time in American Express call centres to pick up calls from customers and listen to their requests. He surely cannot change the customer service level by answering some calls every now and then. However, he walks the talk. As a leader, he knows how important it is to observe and focus on what is critical to customers during the Moment of Truth. And, he expects his employees to “have it in their DNA”.