The Manchester United chief's pre-season preparations have taken on a downbeat demeanour during their summer camp residence in Los Angeles, with the Portuguese tactician bemoaning a number of issues.
He has been cordial with the travelling press pack behind the scenes, although he set alarm bells ringing earlier this week when he refused to state if the Red Devils were good enough to win the Premier League title next season as things stand.
And squad insiders have revealed there have been no big speeches either to the assembled players, in stark contrast to Mourinho's clarion call at the same time last summer.
One issue is the lack of established first-team stars he currently has at his disposal, following their recent commitments at the World Cup finals.
There are a number of young fringe players who are also working with him for the first time, with new first-team coach Kieran McKenna taking a number of the morning sessions, due to his familiarity during his time as boss of United's Under-23s.
Mourinho has revealed he would like two more signings before the league season gets underway at home to Leicester City on August 10, which is believed to be another contributory factor behind his apparent low mood.
The former Chelsea boss is widely known to be all for building a siege mentality amongst his teams, but there has been little evidence of it so far from those assembled.