First, full disclosure I bought this book on Kindle and regret not taking the time for the actual book. Personally, I like to write in the margins, high light and (gasp) make copies of graphs, diagrams etc. but I wanted it quickly and will also purchase the book.It is a very useful and practical book for an OD professional or a business leader that wants hands on control versus employing a consultant. While practical it is a break down of their methods and approach. It is also directed towards a "Matrix" management model, some discussion of other forms of design and their pro's and Con's would have been very useful. The authors are Jay Galbraith mentees so don't expect a critique of matrix management.If you buy into matrix management and the clear advantages in a collaborative environment that has broken down the silos, it is very useful and directive. They have addressed some of the early pit falls of matrix management's question of accountability but don't expect direction to design a "command and control" environment, which would not be an option for most situations but may be required in some.As my rating would indicate, it is an exceptionally useful and instructive book. The steps in their process are clearly articulated as are the underlying issues you are trying to get at. Most impressive, to me was, the way they lead you through the decision you have to make and the questions the various stakeholders have to answer. They walk you through those questions and discussion to arrive at a decision. The book does assume you have a working knowledge of Galbraith's STAR Model, I found that I had to review this model to fully utilize this book. The willingness to be this open and instructive was much appreciated and the advantages greatly outweigh these minor critiques.