Liverpool look like the big winners of the window as they have emerged as second favourites for the title behind champions Manchester City after doing their business early in splashing over £170 million on Brazilian goalkeeper Alisson Becker and midfielders Fabinho, Naby Keita and Xherdan Shaqiri.
Leicester have finally cashed in on Riyad Mahrez but they've shown characteristic resolve to rebuff United's interest in Harry Maguire.
But an inconsistent defense may get a test from England global striker Jamie Vardy, though the Foxes did lose their best player - Riyad Mahrez - in the summer as he was sold to Manchester City.
After the finals it was not the price being quoted for Mina but the structure of the agents' fees being proposed that made the Old Trafford club uncomfortable.
Manchester United begins its season off on the right foot, with World Cup-winner Paul Pogba scoring alongside Romelu Lukaku.
Internally, the greatest frustration for Mourinho has been waiting for the return of those players who had the longest World Cup campaigns.
"The players with a proper pre-season are fit and they are strong. I'd prefer to look to the bench and to have them rather than to have 16-year-old boys without experience and without the power to be Premier Leagues players directly", said Mourinho.
"A lie repeated 1,000 times is still a lie, but the perception of people is that it's true". You have to try your best to get points and even with the difficulties that we had with our pre-season, now I don't think is the time to be speaking about that.
"Because you're not telling me Man United couldn't go out there and spend money on players".
"But it's the same conversation as with (Ashley) Young, (Marouane) Fellaini, (Jesse) Lingard, it's the same".