This type of book gives rise to essentially polemical comments, one has only to see hundreds of comments on Amazon.com about its original version. For my part, I consider that all the points raised in this book corresponds to a philosophy and that none of what is written can or should be applied to the letter, unless you want to go for a pure idealist. .. By cons, each point is discussed very sensible and allows a step towards a more rational and efficient behavior. Read and especially to share with colleagues so that these "best practices" can branch out into the business for that idealism turns into reality!