Jim Collins, author of Good to Great, argues that social sector organisations shouldn't try to be more like business to be successful because the average business is pretty ordinary. Instead it should focus on being a great organisation.

Nikos Mourkogiannis, author of "Purpose: The Starting Point of Great Companies," explains the role of purpose in developing strategy.

An Interview with Michael E. Porter, Professor, Harvard University. Porter's five competitive forces is the basis for much of modern business strategy. In this interview, he explains the five forces framework and how to put it into practice.