The MLS managerial graveyard is littered with foreign head coaches who couldn't find success. World Cup-winning manager Carlos Alberto Parreira failed to make the playoffs during his one season in charge of the New York/New Jersey MetroStars. The same was true for Italy legend Walter Zenga with the New England Revolution. Owen Coyle had a miserable spell with the Houston Dynamo.
Recently, Patrick Vieira has had more success with New York City FC but all told, the only MLS Cup-winning manager who didn't have considerable roots in North America was Englishman Gary Smith, who won the title in 2010 with the Colorado Rapids.