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Peter Bosz has been a manager at a French club. He was the manager of Lille OSC from 2015 to 2017. He led the club to a second-place finish in Ligue 1 in 2016–17, the club's highest finish in the league since 2004–05. He also led the club to the final of the Coupe de France in 2016–17, where they lost to Paris Saint-Germain.