Does this really work with football though? Better sticking to ice hockey or american football.
Yes/no. It's really an approach, not necessarily a defined system of rules. In baseball, which has a high concentration of luck, people realized you can game the odds in your favor in ways that everyone else had missed. You can't *really* do that in football, the outcome of which is more determined by skill/talent.
But you can focus on refining statistics to better understand cause and effect on the pitch, and to help find undervalued players/assets. And, as much as some fans don't like the idea, ALL clubs are doing this.
