DÜSSELDORF – DÜJesse Marsch came to Europe to make a name both for himself and for every other American soccer coach.He managed that in a big way.Marsch led Salzburg to this season’s Austrian league title, the most significant trophy won by an American coach in Europe.“My main emphasis in coming to Europe — of course, ambition was a part of it — but it was more to see if my idea of leadership could thrive in this competitive setting of our sport,” the Wisconsin native told The Associated Press. “And, you know, I mean, it’s very sink or swim in Europe.”In his first season as coach of Salzburg, Marsch had little trouble staying afloat despite a raft of problems.