Charles goes on, in his book and in his workshops, explaining that the most effective project leaders are those that can lead through their emotions, the 'green' and the 'yellow' ones, because project management is all about teamwork and human relationships, all about journeying together towards a better place for all stakeholders. He also says that, although emotion-driven leaders can always compensate for less logical abilities, by finding good 'blue' and 'orange' team collaborators, the reverse is not possible. So, ultimately, in order to become a very effective project leader, one who does not have innate emotion-driven leadership will have to develop the necessary genuine 'gratifying' and 'including' behaviours to succeed, and be able to handle effectively larger, more complex project teams.
Charles has been using assessments of these leadership competencies to measure leaders' and teams' profiles and behaviours along the two continuums. He has also designed programmes to get teams in NASA and elsewhere to improve their profiles, behaviours and, subsequently, performance in delivering outstanding projects.
I wrote above that Charles Pellerin was very generous in the material he shares in his fabulous book. He is also very generous on his website, How NASA Builds Teams. If you go there and register, you'll get access to some of his presentation PowerPoints. You will also be able to make a free assessment of your individual leadership style as well as a free assessment of your team profile. And, if ever Charles gets to your town for a workshop, just go have a journey into project leadership with him. This man, innately a 'blue' Logical-Sensing guy, has succeeded his transformation into a gratifying, very including man, who will lead you to a better self and coach you to awaken the great project leader you were born to be.