Peter Drucker in "Management: Tasks, Responsibilities, and Pratices" offers the following definition of business and its' key functions: "Because the purpose o

Peter Drucker in "Management: Tasks, Responsibilities, and Pratices" offers the following definition of business and its' key functions: "Because the purpose of business is to create and keep a customer, the business enterprise has two--and only two--basic functions: marketing and innovation. Marketing and innovation produce results; all the rest are costs. Marketing is the distinguishing, unique function of the business." If you accept his logic, which I do, then to be in business is to be in the marketing and innovation business.