United fans are unhappy—they're lying if they tell you otherwise. But it's only to be expected when a club so used to success is languishing in seventh place in the Premier League, counting the points between themselves and fourth instead of assessing a lead at the top of the table.
The frustration at six league defeats—four of them at home—hasn't turned into a collective out-pouring of vitriol yet. For now the fans who attend the games—the ones who count—are still following Sir Alex Ferguson's advice to back their new manager, David Moyes. The support he received at Sunderland was almost unbelievable given the circumstances.
But it's still there, whispered in corners, only ever discussed in hushed tones under the cover of darkness.
Criticising Moyes for turning the champions of England into Everton is an easy dig. He's brought his backroom staff with him from Goodison Park, as well as Marouane Fellaini.
Everton were a serial mid-table side under Moyes, and after six months under the same man, United find themselves there, too.
With a smaller budget, Moyes was considered to be over-achieving at Everton. But his time there can only really be analysed now he's gone, much like Ferguson's achievements at United can only be truly appreciated now he's retired.
It certainly doesn't help Moyes' cause that Everton under Roberto Martinez are challenging for a place in the Champions League.
But Moyes is battling against a mentality he developed over 11 years at Goodison Park.
You hear it a lot from United's new signings who arrive from smaller clubs. They'll often say it's a huge culture shock when they discover that drawing away from home is no longer considered a good result.
Get a point away from home and some Premier League clubs are having a party on the bus on the way home. United's players under Ferguson would have got the hairdryer in the dressing room.
Moyes has tried to be ambitious at Old Trafford. He's usually played with two strikers, abandoning the five-man midfield and lone frontman he used at Everton.
But the stats don't look good.
In the first 20 games of last season, Everton under Moyes collected 33 points, scoring 33 goals and conceding 25. After 20 games this season, United have 34 points, scored 33 goals and conceded 24.
Everton were sixth after 20 games last season and hadn't moved by the end of the season. If United were to finish seventh this season it would be hard for Moyes to spin it as anything other than a disaster.
He at least has the chance to put another unwelcome statistic to bed in the coming weeks. A United win at Stamford Bridge on January 19 would be Moyes' first at Chelsea in the Premier League.
It was a stat thrust into sharp focus when Martinez won at Old Trafford with Everton on his first visit. It was something else Moyes didn't need for a variety of reasons.
Halfway through his first season at Old Trafford and Moyes is still struggling to shake the tag of an Everton manager in charge of United.
It's only natural that Moyes would want to introduce elements of what he felt was successful at Everton into his new team at United. After all, it would be foolish to try to be something you're not simply because you've got a new job.
But six months into his reign, the comparisons will be stretching a little further than Moyes is comfortable with. And he faces a fight to make sure they don't stretch all the way to May.