The ever-provocative (but scrupulously "evidence-based") Bob Sutton asks the question: what makes a great boss? Rather than take the usual Mr. Potato Head approach of bolting together attributes, styles, and features to create a vision of the ideal leader, Sutton digs a little deeper into the minds of good bosses and comes up with a set of a dozen beliefs that more or less rule their thinking and day-to-day behavior.