The only rule is it has to work

My only complaint is that there wasn't more nerdy analytic ideas that the authors got to try out. It really does make you realize though how much of modern team success is down to composition rather than tactics. Sure, aggregate managerial decisions could boost your WAR marginally, but really it's the ability to identify talent and roles (fireman) that makes such an immense difference compared to conventional wisdom.

I expected this book to be heavy on statistics and sports strategy but what made it enjoyable was the human elements, especially the impact of the season on the authors themselves who left with an unexpected appreciation for the role that the minor league baseball experience played in the lives of those who made the team.

A nice 2016 update to and real world test of the Moneyball strategy. Fun characters, moves fairly quickly.