Man utd team is struggling, and the whole team is and it's not just the fault of maguire, even the only goal they score was a player scoring against his own goal, and I don't think maguire have that big of an impact on their offensive line as well, Man utd did nothing in the transfer market to make their team better, and the results are showing already.
These results also cannot be used as a basic benchmark for Manchester United next season, although it is true that Manchester United are not bringing in more new players through the current transfer market. But I'm sure that Manchester United will make changes for the better before next season because Manchester United can take a reference in some of the games they have played at this point.
There have only been two coaches since the Ferguson era until now in their inaugural match, namely Erik Ten Hak and Louis Van Gaal, both of whom are Dutch coaches. changing the pattern of play for the future, the back line is mostly highlighted, because they failed to secure the penalty city area, if this change can't be carried out properly by the coach, it is not impossible that Erik Ten Hak will also experience the same thing as Louis Van Gaal