The decision appears to have come as something of a surprise to supporters, with the Potters having had a steady start to the season, picking up six points from their first five games and thumping Boro to book a place in the third round of the Carabao Cup.
But the former Plymouth boss has lost his job after the weekend defeat at Oxford United.
Sporting director Jon Walters said: “My role as sporting director is to make tough decisions that serve the long-term interests of Stoke City.
“After ongoing discussions with John Coates, we feel the time is right for a change in direction to bring success to the club.
“We have a young, dynamic squad that is eager to develop and a clear vision of how to achieve success, and we hope to announce a new appointment shortly. We will need the fans, staff, and players united in support to achieve our goals.
Mark Hughes, Chris Cohen, Peter Cavanagh and Elliot Turner, all part of Schumacher’s coaching team, have left the club along with the head coach, with Alex Morris and Ryan Shawcross taking caretaker charge of the team.
Chairman John Coates said: “Steven, Mark, Chris, Peter and Elliot depart with our thanks for their efforts and with our best wishes for their future careers.
“We have faith in the squad of players we have assembled and firmly believe they can bring success to Stoke City this season.
“I continue to be hugely thankful to the club’s fans for their loyal and passionate support.
