Can't stop the revolution

Although Lionel Messi didn't bring home the title, he did help Argentina create 10.4 shots per 90 minutes during the World Cup. Jamie Squire/FIFA/Getty Images

This article appears in the July 26 issue of ESPN The Magazine.

For anyone who likes numbers, the World Cup offered a tantalizing, frustrating lesson: There's a statistical revolution coming in soccer. We just don't know when it's going to arrive.