Arguing the difference between “management” and “leadership” is an old debate, one that can come across as the business school equivalent of the ancient theological conundrum “How many angels can dance on the head of a pin?” Our colleague John Hillen, a seasoned CEO and board director as well as a Professor at George Mason University, suggests a different way of thinking about these fundamental concepts, and offers some useful insights for anyone in the business of getting results with and through others.