Here's a fun fact: The most successful English manager of all time in the Premier League is Tim Sherwood.
Based solely on average points earned per game, Transfermarkt shows that the Spurs manager is the best Englishman to coach a team since the league's inception in 1992.
Transfermarkt's stats show that foreign managers have had a huge impact on the English top flight, with just seven British managers breaking the top 20.
Obviously, there are plenty of metrics to measure the best foreign manager, but here they are ranked by points earned per game.
(N.B.—A foreign manager is defined as someone from outside the UK and Ireland.)