The Stockdale Paradox, named after Admiral James Stockdale (a POW in Vietnam for eight years), is a critical psychological component of .

At the heart of Collins’ best-selling book, Good to Great , lies the concept of Level 5 Leadership. Before Collins, the prevailing image of a successful CEO was often a larger-than-life figure—a celebrity leader with a booming voice and a massive ego. Collins’ research shattered this archetype.