Matheus Cunha gave Man Utd the lead in the first half Credit : Julian Finney/Getty Images The next Champions League campaign for Manchester United is not yet guaranteed to be overseen by Michael Carrick , but whether it is him or someone else in charge next season, there is no doubting the scale of the turnaround. There are five games left in this United season that was long since pared down to the basics of league football, and they have a 10-point margin of safety on Champions League qualification. Carrick’s United have taken 26 points from the 12 games he has been in charge and he needs just six more to equal the total that his predecessor Ruben Amorim returned in 21 games. That all feels a long time ago, and another Carrick win meant that afterwards he could dismiss concerns about the home defeat to Leeds United on Monday night with a shrug. Not many United managers in recent years can ride away from a defeat to that opponent with such confidence – but Carrick is among them.…