Maybe I just read the book too quickly, but I found the intellectual heft of this book to be somewhat daunting. There is so much ground work involved in developing the motivation to comprehend what a "3G" mindset consists of. I advise you to read one chapter a week or so and ponder what it means to develop each of the three "G's" ( Global, Good and Grit) to you. It may sound simplistic, but there are layers and layers of concepts in improving these core values that you may never have thought about. If you don't have the energy to delve that deep at this time, perhaps it would behoove you to spend time with this book only on your days off!
That being said, I'm a junkie for testing and analysis. The online resources provided by purchasing this book alone are worth the price of admission. I love seeing my numbers crunched and seeing how I score in comparison to other mined data. I'm a nerd--but I'm exhausted by the breadth of the text itself. Another time perhaps!