Can leadership be taught to someone who's already in charge? Fortune recently spoke with Deloitte CEO Jim Quigley to discuss his concept of leadership and his outlook on American competitiveness.

Interview by Scott Olster, associate editor

What makes a leader effective? How can a leader adapt to a changing environment? And what do you do when the people you are expected to manage have no interest in cooperating? Deloitte Touche Tohmatsu CEO Jim Quigley and Mehrdad Baghai recently published As One: Individual Action, Collective Leadership, which argues that leaders can take several different approaches to their craft, with the goal of inspiring collective action.

As One sidesteps the concept that a leader can either be a dictator or a representative of the people and nothing in between. Instead, the book offers eight models of leadership, using professional relationships like conductor-orchestra, landlord-tenant, and architect-builders, to illustrate different management styles. Fortune recently sat down with Quigley to discuss his concept of leadership and his outlook on American competitiveness.

Fortune: Why publish this book now? Is there something about the current American work environment that convinced you to publish this book? More