Manchester United's latest reboot is off to a flying start. In his first game in charge, Michael Carrick saw his team pull off a stunning 2-0 win against Manchester City in the Premier League on Saturday to lift the gloom hanging over Old Trafford."It's a great start, there's no getting away from that," Carrick said after goals from Bryan Mbeumo and Patrick Dorgu sealed victory in the 198th Manchester derby. The job now is to keep the good times going."That's the challenge ultimately, and I think it needs to be a version of normal," said Carrick, who was appointed head coach this week. The former United midfielder has only signed a contract until the end of the season and has 17 games to convince the club's hierarchy to give him the job on a permanent basis after Ruben Amorim became the sixth permanent manager or head coach to be dismissed since club great Alex Ferguson retired in 2013. He could not have made a better first impression with a dominant performance against all-conquering City manager Pep Guardiola, who could do nothing but congratulate his opponent after the game."The better team won. There's nothing more to say," Guardiola said. "When a team is better you have to accept it.