If you want to be critical, there ain't that many "new" ideas being presented in the book. But they are excellently summarized, contrasted, researched and presented. What it tells you is that "common sense" is not really that much to rely on and that thinking and acting are more important than having your own pet theory fulfilled.

In short, it was a joy to read, it made you think and gave you a lot to think about. I should recommend it to any aspiring or experienced manager. In fact, you probably can't go wrong reading it!

This is one of those books that you should have read.