Speaking at a news conference to preview Friday's Premier League opener against Leicester, Mourinho told reporters he does not expect any deadline-day activity at Old Trafford, despite also being linked to centre-backs Toby Alderweireld, Yerry Mina and Jerome Boateng.
Scholes said the club has undoubtedly brought in talented managers, but they still lack the edge when it matters the most.
Man United chiefs reportedly vetoed Mourinho's targets as they believed he was "targeting defenders who were no better than those they already had".
United have only won three trophies since, the Europa League, Fa Cup, League Cup.
"My view is that it is hard for me to believe that we finished second", he said.
While the United hierarchy is known to be reluctant to sell the young striker, Mourinho has endured a trying time in his relationship with Martial after he left United's American pre-season tour to attend the birth of his child and did not return - missing nine days of training.More news: Chelsea agree club-record fee to complete third summer signing
More news: Atletico Madrid defender Godin rejected massive Man Utd contract offer
More news: Israeli fire kills 2 Hamas militants in Gaza
"I'd say it's a doubtful situation there", he said in regards to whether Mourinho will see out the season.
Maguire and Leicester's main goal threat, Jamie Vardy, may not start having just returned to pre-season training this week after their exertions in Russian Federation. For nine days he didn't train.so he's to start again. "There is not a story".
While Jose Mourinho's side climbed from sixth to second in 2017-18, the style of football left many supporters dissatisfied and the team still finished a record 19 points adrift of champions and local rivals Manchester City.
The former Chelsea boss has clearly become very frustrated with Ed Woodward's inability to deliver signings. He's a midfield player that technically is very good.
"One lie repeated 1,000 times is still a lie, but the perception of people is that it's true". I like my group.
"I know the words you want me to say or not to say but words don't come easy". Both the teams will be looking to start their Premier League campaign with a victory as they face off today in the inaugural match.