Three weeks. Three wins. Zero patience for rules that weren't working. Michael Carrick has made an immediate impact at Manchester United, both in results and in performance around the club, since taking interim charge following Ruben Amorim's departure.

After 14 months marked by disagreements with the club hierarchy over tactics and transfer activity. Since stepping in, the 44-year-old has claimed three victories from three matches.

Carrick began his spell with a 2-0 victory in the Manchester derby before guiding United to a 3-2 win away to league leaders Arsenal. A late winner against Fulham completed a perfect start, making it three victories from his opening three matches in charge.

How Michael Carrick Changed Manchester United's Daily Routine

Both Amorim and his predecessor, Erik ten Hag, required players who featured in matches to report back to the training ground the very next day for recovery work.

However, Carrick abandoned that rule entirely, instead giving players designated rest days within 24 hours of a fixture and moving recovery sessions to the second day after the final whistle.

Amorim had implemented a rigid 3-4-3 system and refused to deviate from it despite inconsistent results. The approach also saw academy graduate Kobbie Mainoo fall out of the starting lineup.

Carrick abandoned that 3-4-3, reverting to a more familiar United 4-2-3-1 built around fast, direct wing play, and has aswell restored Mainoo to the starting lineup.

Training methods have changed as well. The 44-year-old has shortened training sessions while increasing the intensity of the drills, placing greater emphasis on individual coaching with support from new assistant coaches Steve Holland and Jonathan Woodgate.

Carrick Is Putting Manchester United's Academy Back At The Centre

This is where Carrick's changes carry real significance beyond results on a Saturday afternoon. His approach to developing young players could prove just as significant. Amorim's handling of United's academy graduates became a recurring point of debate during his time in charge.

While he handed senior opportunities to youngsters such as Chido Obi, Harry Amass and Ayden Heaven, he also publicly criticised them, along with Kobbie Mainoo, in a way that drew attention inside and outside the club.

Carrick has taken the opposite approach, showing genuine interest in young players and the academy as a whole, bringing back youngsters such as Habeeb Ogunneye from loan and Joe Hugill to train with the first team.

He has also been seen regularly attending youth team matches, something Amorim was accused of neglecting, sending a clear signal to academy prospects that a genuine pathway to the senior squad still exists.

For a club whose identity has long been tied to producing its own players, that change could have longer-term implications than any alteration in formation. If Carrick continues to trust academy graduates, the relationship between the first team and the youth system may begin to strengthen again.

Carrick Rebuilds the Dressing Room Around Player Voice

Amorim had prohibited food from being brought into the dressing room, citing fitness standards, this was a decision that reportedly affected morale. Carrick is understood to have reversed that policy as part of a broader effort to ease restrictions around the first-team environment.

The former midfielder has also introduced a different approach to post-match communication. Players are now expected to remain together after games until the coaching staff have addressed the group, with Harry Maguire set to play a leading role in reinforcing those standards within the squad.

The change represents a clear break from Amorim's approach, under which players were often allowed to leave without a collective debrief.