When it became clear that he was no longer in favour with Bosz, he decided to move to Borussia Mönchengladbach. He remained loyal to the club for a total of five years before returning to his home country to join SC Freiburg in the summer of 2022. He is still under contract there today,
Bosz’s spell at Dortmund was, however, short-lived. Due to a lack of success, the Dutchman was sacked just five months later, in December 2017, and replaced by Peter Stöger.
After spells at Bayer 04 Leverkusen and Olympique Lyon, Bosz joined PSV Eindhoven in 2023, where he remains under contract until 2028. His greatest achievements include winning two Dutch league titles and two Dutch Super Cups.