Erik ten Hag expressed his disappointment with his team's lack of effort during their Europa League match against Twente, describing it as a performance that was only at 1 per cent of their capability. The team currently sits in 11th place in the Premier League after five games.
However, the underlying numbers suggest his side have, in fact, improved since last season during the opening five league games this term - ranking in the top five across a raft of key attacking metrics.
At the other end of the pitch, United were criticised heavily for facing 667 shots in the Premier League last term - only Sheffield United faced more.
However, that number has nearly halved as a per-match average this term. In fact, only five clubs have faced fewer shots.
TrendingMeanwhile, there have been slight improvements in other defensive areas, having also made a league-topping 59 interceptions.
United would jump six places into fifth spot in the expected Premier League table, which is based on expected goals (xG) for and against.
Here, Ten Hag's side would sit just two points adrift from table-topping local rivals Manchester City.
In terms of the difference between actual and expected league positions, United are the league's joint-biggest underachievers this term - along with Southampton.
Last season, United were overachieving - finishing eighth with their xG numbers placing them in 14th, just 15 points above the relegation zone. Only West Ham outperformed their underlying numbers more than Ten Hag's side.
Despite overachieving, the club's eighth-place finish was their worst league finish during the Premier League era.
So, why are United sat in 11th when xG says they should be six places higher in fifth spot? Well, Ten Hag's men have scored around five goals fewer than expected, based on the quality of chances they have created in front of goal.
Again, only Southampton have a worse differential in the Premier League this season.
United have missed a league-high 17 big chances so far - five more than any other side.
Which players are most culpable? Bruno Fernandes has registered 1.86 xG but is yet to find the back of the net. Meanwhile, Joshua Zirkee and Alejandro Garnacho should have scored at least twice but have each only scored once.
The trio rank among the bottom five for xG differentials this term, along with Cameron Archer (Southampton), Evanilson (Bournemouth) and Rodrigo Muniz (Fulham).
Is there a shining light? In terms of getting into the box and creating chances, the chart below reveals Amad Diallo has outshone his team-mates by a distance so far - earning ample game-time during the early stages of this campaign.
Marcus Rashford scored his first goal since March against Southampton a fortnight ago and followed up with a double during the 7-0 win over Barnsley, but started on the bench against Crystal Palace and failed to score against Twente.
The England forward started centrally in the Carabao Cup - a position he has occupied in almost 30 per cent of his game-time under Ten Hag.
Given United's blunt edge in front of goal, question marks remain over whether Rashford should assume the regular No 9 role.
There have also been inconsistencies at the other end of the pitch, with no centre-back partnership clocking more than 500 league minutes together since the start of last season.
The most used partnership during that period has been 36-year-old Jonny Evans and Raphael Varane, who left the club this summer and retired from football this week at just 31 years old.
Ten Hag has now entered his third season at Old Trafford after INEOS backed him to remain at the helm after a review in the summer.
The Dutchman has also been backed financially, with £616.8m splashed on signings during his tenure - only Chelsea have spent more during that time.
Additionally, in terms of the resources at his disposal, Ten Hag's current squad cost around £888m to assemble. Again, only Chelsea's squad surpasses that figure.
Ten Hag now faces a critical period with his side hosting Tottenham under the Sky cameras on Sunday, before traveling to Porto in the Europa League in midweek and playing high-flying Aston Villa on the road next weekend.
Ten Hag has become a master at weathering storms during his time at Old Trafford and he appears to be approaching another make-or-break period.
This time, the Dutchman will be hoping his side materialise their underlying numbers by converting clear-cut chances into goals.