Rich Diviney delves into what makes each person who they are. He enthralled me at the beginning of the book by discussing the seemingly un-quantifiable factors that would determine whether a Navy Seal would be selected into the elite DEVGRU (Seal Team 6). Although he doesn't specifically state the unit in the book, it was quite easy to infer.
Early in the book, he is discussing having to be accountable to higher-ups in the Navy for why certain Navy Seals weren't being selected. As Rich was an officer in the Training Group responsible for selection, he had to help develop a justification beyond "they just don't fit".
The sub-title of the book says "25 Hidden Drivers of Optimal Performance". What I noticed while listening to this book was that auditorily I wasn't able to explicitly distinguish what the 25 attributes were. The book was very solid material and provided some concepts and direction on what attributes are, but I finished the book saying "wait, what were the 25?" Several of the ideas were interrelated, so they kind of blended together. Fortunately, he has a website theattributes.com where I was able to visually see what the 25 are, and it even offers an "Assessment"
Perhaps if you're reading/have read the book, maybe it was more visually understandable. What I did pick up was a differentiation between skills and attributes. Skills are learned and usually able to be mastered, Attributes are what make us who we are. It's a very interesting self audit.
Did you take the assessment? What do you feel are your strongest attributes?