Having signed Fred, Diogo Dalot and Lee Grant, the Portuguese hoped to bring in two more players but would have been satisfied with just one.
A man now on the books of MLS side D.C. United said: "I am sure Jose (Mourinho) has been getting the team right".
"I focus on the players I have for the first couple of matches".
"I think the early closing of the window appears to have made clubs more reticent to sell players to other clubs in the Premier League", Bridge told Press Association Sport.
"Equally, it appears to have removed the element of panic-buying, whereby a club may have a poor start to the season and think "we've got to go out and spend to safeguard our future in the Premier League".
Asked whether he he believed there would be any movement in or out of Old Trafford on deadline day, Mourinho replied: "The information I have is no".
Those issues have provided an unwelcome backdrop to a hard pre-season, United's makeshift side having suffered defeats to Liverpool and Bayern Munich. Any deal for Tottenham's Toby Alderweireld was a way off on the eve of the deadline and interest in Barcelona defender Yerry Mina has been tempered up until now by prohibitive financial demands.
Whatever the explanation, the lack of new faces compounds issues surrounding the United squad heading into the Premier League season.
"They returned on Monday", he said. "They trained Monday, Tuesday, Wednesday and today, so you can imagine they are not really fit and ready".
The extension sees the Premier League rights remain on BeIN's roster of European soccer broadcast rights - which includes the top tiers in Spain, Italy, Germany and France as well as the Uefa Champions League and Uefa Europa League - in the run-up to the 2022 World Cup in Qatar.
"My view is that first of all it is hard for me to believe we finished second", said Mourinho ahead of his side's Premier League opener against Leicester.
"Is hard for me to understand, to feel, to believe we finish second".