As far as making impressions go, Jose Mourinho has made the perfect start to life with Manchester United. A trophy in his first game in charge, with a 2-1 win over Premier League champions Leicester City in the Community Shield, and 100% record in the league so far, it couldn't have started any better for the Portuguese.
Despite the 53-year-old's trophy-laden managerial career, it is fair to say there were some doubters when the former Chelsea boss arrived at Old Trafford this summer. Mourinho has not taken charge of any of the six previous clubs he has managed - seven, including his second stint at Chelsea - for more than three years.
But although United's appointment seems short term, the Portuguese has already made as many as seven key changes at the club, which have put the Red Devils on the right track, according to the Daily Mail.
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Dressing room return
One of Mourinho's first changes was to return to United's dressing room on a match day, rather than changing in a separate room, as was previously ordered by Louis van Gaal.
Mourinho is well known for establishing a close bond with his players, and was quick to rejoin his squad and show unity amongst the group, rather than shutting himself off from the rest of the players on important match days.
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The room which Van Gaal used to use is now for the purposes of entertaining visiting managers.
Mourinho gives assurances
As with any managerial change, a number of players often become concerned and question their futures at the club, and no player would have felt that way more than Juan Mata.
The Spaniard was sold by Chelsea during Mourinho's reign at the club, with fans and the media alike assuming that the Spain international would, again, been shipped out of the club by Mourinho. However, the Portuguese has given assurances to a number of players who may have questioned their futures under the new Red Devils boss.
Asides from a bizarre 30-minute appearance against Leicester City in the Community Shield, in which Mata was both subbed on and off by Mourinho, the Spaniard has started every game since. While Marouane Fellaini has benefited further still, with Mourinho having phoned the Belgium international within 24 hours of his appointment as United boss, to give the midfielder assurances that he had a future at Old Trafford.
Fellaini has since played every minute under Mourinho, having been signed during the failed tenure of David Moyes.
Mourinho has always preferred a physically imposing side, and with the arrivals of Zlatan Ibrahimovic, Paul Pogba and Eric Bailly, along with the fact that the Fellaini remains in the Portuguese's plans, the Portuguese has reconstructed the physical aspects of his new team.
So much so, United will now boast a height advantage over City at the weekend, as Mourinho prepares to face up against his old rival Pep Guardiola. And with the demanding and physical nature of the Premier League, the United boss will undoubtedly benefit from the acquisitions he has made this summer, as well as deciding to keep ahold of Fellaini.
Amongst Van Gaal's bizarre decisions was to have cameras installed at the club's Carrington training ground, however, Mourinho is trusting his own judgements in the flesh - which has clearly worked for him in the past - rather than intimidating nature of cameras around the training complex.
Pre-planned training schedule
While Van Gaal was unpredictable with his training schedule - much to the annoyance of United's players - Mourinho has worked hard to make sure that training is planned nearly as far as a month in advance, allowing players to plan ahead.
It is a simple measure which the Portuguese has brought in to, again, stay on side with his players and respect his team's needs to be able to organise their personal lives, also.
Delayed line-up announcements
The Dutch are considered very tactical as far as football concerned, but Mourinho has seemingly got one over his predecessor who liked to name his team line-ups early and marginalise players for days.
Instead, Mourinho has been announcing his starting XI to the players later than normal, in hope of keeping all players on their toes, sharp and ready to be called upon, rather than switching off in training when their fate had already been sealed.
Canteen rules abolished
Van Gaal, as the strict disciplinarian that he was, ordered strict canteen rules in which he would be served first, followed by the players. But Mourinho has abolished such strict dining rules, creating a more relaxed mood.
Players are free to sit where they want, with few formal meal times and a glass partition which separated playing and non-playing staff, is now kept permanently open.
But only time will tell if Mourinho's significant changes will ultimately bring the rewards on the pitch over the coming seasons.
Are Jose Mourinho's changes going to benefit Manchester United in the long term? Have your say in the comment box below.