When reading a book of this nature, I like to know what credentials the authors have so I can know what makes them trusted authorities on the subject. Well, the authors tell you themselves in the beginning of the book that they failed to lead change in their respective contexts, quickly burned out, and went to work for a think tank, where they decided they would teach others how to do what they could not.
While they are more than happy to draw inspiration from any and all sources, the authors seem to go out of their way to avoid overtly Christian teachings. As for their "brilliant" insights, they include gems such as: imagine a door frame in front of you that has your better future on the other side; now step through that doorway, look around, and see what is different; now turn around and speak to your past self about how to get where you are. In order to lead change, they advise you to tap into the greatest source of power imaginable. Could it be the timeless wisdom God has revealed in Scripture or the power of the Holy Spirit? Nope. Your own imagination.
If you want to read a book about how to make everyone feel warm and fuzzy while accomplishing little to nothing, this book is for you.