Die-hard Oakland A's fans were angry with general manager Billy Beane when he used computer-generated analytics to pick his players in 2002. Fans doubted that a computer could out think the scouts and experts in the stands. So their trip to the playoffs that season, as well as the following year, shocked the baseball world–—and convinced other teams there might just be something valuable in crunching numbers.
Well, that was baseball. Legal professionals, on the other hand, still need some...