Looking for book (or movie) recommendations about the history of soccer strategy and tactics. I recently saw "The Beautiful Game," a 6- or 7-part BBC(?) documentary about soccer history. It was pretty good on the social history of soccer, but not much on tactics and strategy. Someone on here, I think, recently recommended a book called something like Inverting the Christmas Tree, but I'm not sure I've got the title right, and I haven't been able to locate it. Thanks!