Whether it were mind games or genuine woe, the Portuguese continually insisted on more additions in his pre-season press conferences and only received Fred, Diogo Dalot and Lee Grant in return.
A fascinating piece by Daniel Taylor, in The Guardian, details some of the reasons why United opted not to splash big money once the likes of Varane were not on the market.
"My perception is he arrived Monday, happy, proud, with a desire to work", Mourinho said ahead of Friday's opening Premier League fixture against Leicester.
Newly-promoted Fulham brought in five new players, including Marseille midfielder Andre-Frank Zambo Anguissa for a club-record £30m.
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It is understood United officials have grown increasingly tired and suspicious of Pogba's high-profile agent Mino Raiola, whom they blame for stories that his client would prefer to play for Barcelona.
Speaking at Carrington, Mourinho said: "If they feel they can help us, 20 minutes, ten minutes half an hour..."
'I am not confident, ' Mourinho (below) said of United's chance of new signings yesterday morning.
The Red Devils did not get off to a great start results-wise with three consecutive draws coming against Club American, San Jose Earthquakes and AC Milan - the latter in the International Champions Cup.
"You [the media] repeat 1,000 times my relations with my players is not good", Mourinho stated.