Orta said: “Jesse is someone we identified a number of years ago during his time at Red Bull Salzburg and we believe his philosophy and style of football aligns with that of the club and will suit the players very well.
However the appointment of the former US international, who also previously assisted Rangnick at Leipzig, is undoubtedly a risk. This is Marsch’s first job in English football, having managed MLS teams Montreal Impact and New York Red Bulls before moving to Europe and taking charge of Red Bull Salzburg where he twice won the Austrian league title.
The 48-year-old began the season in charge of RB Leipzig, succeeding Julian Nagelsmann, but it did not work out and he left by mutual consent in December and has been out of work since then.
After an impressive ninth-place finish last season, their first back in the top-flight since 2003-04, Leeds have struggled. They currently find themselves in 16th, two points above in the relegation zone, having played two games more than 18th placed Burnley.
Bielsa left after three and a half years with Leeds and following Saturday’s crushing 4-0 defeat at home to Tottenham Hotspur. Marsh’s first game will be Saturday’s away fixture at Leicester City.