Competitive balance in football: Why the English Premier League has been turned upside down | The Economist

“In statistical terms, the correlation between pace and average shot distance was 0.35…. But during this season, that link seems to have been broken: some quick teams, like Leicester City or Newcastle United, are also among the league leaders in shortest shot distance, whereas some slower ones, such as Chelsea or Swansea City, have struggled to get close to goal at all. The overall correlation has now fallen to a virtually nonexistent 0.06. This suggests that a handful of clubs have managed to come up with new strategies that their opponents have not yet figured out how to counter—a new source of variance among clubs (in addition to raw player quality) that may be one cause of the EPL’s increasing unpredictability.”