Michael Carrick wins the Manchester Derby: A dream start and the challenge of sustainability.

Michael Carrick has just had a perfect debut as Manchester United's manager. The 2-0 victory against rivals Manchester City in the 198th derby at Old Trafford not only brought three valuable points, but also served as a strong affirmation of the former elegant midfielder's return to his new role.

Harry Maguire's gamble and the transformation of the defense.

The biggest highlight of Manchester United's victory was Carrick's bold personnel decision to include Harry Maguire in the starting lineup. The new Red Devils manager admitted it was a calculated "gamble," as the English center-back had just returned from a long injury layoff and had only recently come back from the bench in the FA Cup defeat against Brighton.

Instead of using young players like Ayden Heaven or Leny Yoro, Carrick put his faith in experience to face Erling Haaland. Maguire repaid expectations with an outstanding performance, combining seamlessly with Lisandro Martinez to form a solid defensive wall. Despite pre-match doubts about his physique from former players like Paul Scholes and Nicky Butt, Martinez completely overshadowed Pep Guardiola's attack, forcing Haaland to leave the field limping after the first half.

Sharp counter-attacking tactics at Old Trafford

Manchester United displayed a scientific and effective style of play. Bryan Mbeumo and Patrick Dorgu were the goalscorers, bringing overwhelming joy to the fans at Old Trafford. In fact, the score could have been more lopsided if shots from Amad Diallo, Bruno Fernandes, and Mason Mount hadn't been disallowed by VAR or hit the post.

Statistics show that the two wing-backs, Diogo Dalot and Luke Shaw, played extremely disciplined football, completely neutralizing Man City's attacking threats from the flanks. The counter-attacking style of play, a hallmark of Man Utd in big matches, continued to be maximized under Carrick.

A warning about 'false dawns'

While winning the derby is a huge morale boost, Michael Carrick and his players still need to keep their feet on the ground. Recent history shows that Man Utd often play very well against big teams when they are the underdogs – as they did against Liverpool and Man City under Erik ten Hag – but often struggle against opponents who play deep defensive football.

The collapse of Ruben Amorim's previous reign was a costly lesson, with the team consistently dropping points against Bournemouth, Wolves, Burnley, and Nottingham Forest. The real challenge for Carrick will be his ability to impose his game and break down dense defensive blocks. Ahead of the Red Devils is a trip to Arsenal's Emirates Stadium next weekend, another tough test to prove whether this is a genuine resurgence or just a fleeting moment of brilliance.