I'm one of the authors of this book. You are not part of the target audience for this book.

I would not have expected for you to learn anything new. This book has a very specific purpose -- it is aimed squarely at the complete novice. The one who has been hearing all the Lean-Agile buzz, really knows nothing about it, and wants learn more quickly to decide if they want to did deeper (without having to read a 500 page tome).

For people like you and I who have been steeped in this stuff for years, it can be easy to forget that there is a very large population of software developers who are not only are still practicing "traditional" software development and don't really know anything about Lean-Agile other than they have been hearing all the Lean-Agile buzz and they want learn more without having to read a 500 page tome.

The book is premised on the Dreyfus model of skill acquisition using the notion that beginners need more prescriptive guidance. It introduces them to the history and concepts (without much depth) and tells them where to go to delve deeper. This book is meant to introduce such developers to the concepts and give some prescriptive guidance on how/where to dig deeper.

Curt