There were protests at Old Trafford and even though two academy products stood out, Michael Carrick’s future is far from safe. 0Kobbie Mainoo, who played a part in the winner, shields the ball from Leonardo Balerdi.Photograph: Steve Taylor/PPAUK/ShutterstockGreen and yellow balloons bobbed around the Stretford End. Tennis balls rained down on the pitch in protest at the chronic, enduringly cinematic decline presided over by Manchester United’s ownership.