That's true. I've only read parts of the book because it does require two to tango. But I got the feeling that once you got your spouse to buy into differentiation...then you could really get some sparks to fly.
One criticism of the book is that it's rather clinical and cerebral at first. I think Michelle is a MUCH better writer in terms of conveying her ideas. But this guy did a lot of research...so consider the source...
IMHO...PM would be the book you go to after SSM...and after you get your spouce to buy into SSM. Just my $.02.
"The journey of a thousand miles begins with one step." – Lao Tzu