This is a classic example of too many cooks spoil the broth. I’ve watch the talk by Simon Sinek and he definitely has some thought-provoking ideas. Unfortunately when he and the rest of the gang tried to pull together a project like this, their voices are disjointed and their messaging, repetitive. The book ended up making Sinek sound like a self-righteous prick.
Granted, it was mentioned that the project was challenging as the authors live on different continents and had to coordinate their efforts across different timezones. But that is precisely why they need to eat their own dog food and “find the why” for co-authoring this book in the first place.