This book was written in 2007, so I give it some credit for reflecting the thinking of its time. If it had been written today, however, I would consider it a complete failure - based on my more than a decade of experience coaching and advising organizations and individuals in Agility.
The positive aspect is that the book does offer a collection of interesting ideas and information.
The first major issue for me is its use of five levels of leadership. I personally prefer the concept of levels of consciousness based on stage development models, such as the one introduced by Richard Barrett in The Values-Driven Organization. The foundational work referenced in this book from Ken Wilber’s A Brief History of Everything is also relevant. Both approaches are far more human-focused than the Agile Leadership categories presented here.
I also strongly disagree with the book’s monetary focus. According to the authors, Agile Leadership appears to be necessary primarily for profit maximization, for increasing personal status and income, and for climbing hierarchical ladders. I believe this reflects an outdated and narrow worldview. Modern organizations are human-centered, not money-centered.
My main critique, however, is that the entire narrative is built around managerial roles within a dominator hierarchy - especially CEOs. In my view, organizations based on dominator hierarchies are outdated. These structures may have been suitable 120 years ago when they contributed to significant economic growth, but times have changed. People have changed. Societies have changed. Mindsets have changed. Our environment has changed. And as the authors themselves note, we now live in a highly complex, interdependent, and interconnected world. Therefore, these old organizational models are no longer adequate. As mentioned above, I believe the future belongs to human-focused enterprises that operate without formal hierarchies and instead concentrate on human well-being. Leadership is still necessary, of course - just not tied to fixed positions in a hierarchy. It should be open to anyone who is able and willing to step into it when needed.