How was your day?

I'm not. It's a quote from Moneyball (Michael Lewis) from the GM of the Oakland A's, Billy Bean, who approached the game sabermetrically to decide on his trades and picks. The entire book is about how baseball recruitment overvalued certain statistics that turned into a bidding price war on those few qualities. Meanwhile other factors of the game such as on base percentages were largely ignored and undervalued as per status quo, albeit having intrinsic use i.e. wearing down the pitcher, limiting outs, and gradually increasing the prospect of a run.

Moneyball is about a manager who went about breaking down player statistics and started investing in people who were undervalued for possessing talent that wasn't seen as being important in the game and fundamentally created a playoff team at a fraction of the cost of say, the Yankees, who spent a fortune to assemble a playoff team on their roster.

It's a good book. It's about how people think. It's about a flawed status quo. It's cross applicable and you can dream about making millions by finding other flawed systems and milking them for all they are worth.