" First of all the founders, together with other key people in the firm, will have to think through the key activities of their business. What are the specific areas upon which the survival and success of this particular business depend? Most of the areas will be on everyone’s list. But if there are divergencies and dissents – and there should be on a question as important as this – they should be taken seriously. Every activity which any member of the group thinks belongs there should go down on the list. "

― Peter F. Drucker , Innovation and Entrepreneurship: Practice and Principles