Raising them might prove tougher though as United's worst start to a season since the early days of his predecessor Sir Alex Ferguson in 1989 has left them down in 12th place in the Premier League after six games.
Replacing Ferguson always looked like being a tough task for the former Everton manager, especially when all the main title challengers invested heavily in new players during the off-season while United stood still.
The Reds made only one addition for the new season and Marouane Fellaini, whom Moyes signed from Everton on deadline day, did not even start in the 2-1 defeat by West Bromwich Albion on Saturday, with Moyes opting instead for Brazilian Anderson - a player who rarely got a look-in during Ferguson's latter years.
That seemed to set the tone and after three defeats in their opening six matches fans are scratching their heads in bewilderment at their team's sudden fall from grace.
Rather than rant and rave about the shortcomings of his team, Moyes has remained calm and refreshingly honest.
That, of course, has been a catastrophic mistake. Accepting second best is an alien concept at Old Trafford, and admitting weakness is the opposite of what Ferguson would have done - unless he was angling for funds immediately before the transfer window.
Moyes admitted Manchester City were "stronger and quicker" than his side after a 4-1 derby loss last week. His predecessor would have found a way to blame the defeat on the referee, the fans, the police, the TV schedule, the colour of their opponents' shirts... Anything rather than admit what was obvious to anyone watching.
That's not the Moyes way, however. Following a first home loss to West Bromwich Albion for nearly 35 years, Moyes simply said: "We are just not playing well...we were lacklustre in nearly all areas."
The Scot went on to water down United's Champions League chances ahead of a testing trip to Ukraine to play Shakhtar Donetsk.
"To win the Champions League, you need five or six world-class players," Moyes said, pointing to the array of match-winners at Barcelona, Real Madrid and Bayern Munich, before adding that the only thing his men had in the locker was experience.
Can you imagine Ferguson saying anything like that? Of course you can't. Though you probably can imagine him firing a member of the club staff for daring to voice such a view in the Old Trafford canteen.
United began their Champions League campaign with a 4-2 home victory against Bayer Leverkusen but that, and an opening-day win at Swansea City, have been the only two performances showing hints of the old United swagger.
Ferguson was a master at instilling a sense of superiority into his players, even when things were not going well. On those rare occasions when he led a team of losers, he made them feel like a team of winners-in-waiting.
Moyes, by contrast, appears to be turning a team of reigning champions into a team of losers. It doesn't take a huge leap to imagine that if this continues, some of his best players will be clamouring for the exit at the next transfer window, while the worst will be lying awake at night worrying about how history judges them when the books come to be written on the disastrous collapse of the Ferguson empire.
United's results last season in taking the title often masked patchy performances and the aura that Ferguson built up over the years was enough to intimidate mid-table sides such as West Brom.
That entire season is starting to look like the wild orgies in the last days of Rome, right before the Visigoths sacked the city.
Never was that made clearer than on Saturday, as the normally overawed visitors from West Bromwich sensed United's unease and went for the jugular.
With bottom club Sunderland to come next weekend after the trip to Donestk, Moyes desperately needs two convincing performances to stem the flow of criticism about his team selection, tactics, training methods and his decision to change many of Ferguson's backroom staff.
Eric Steele, United's goalkeeping coach under Ferguson, was jettisoned along with assistant manager Mike Phelan and first-team coach Rene Meulensteen.
"He spoke to me, Mike and Rene," Steele told The Sun newspaper. "I told him I thought it was a brave decision. He listened to the manager's (Ferguson's) advice but he wanted to be his own man."
Moyes will need all the tenacity that marked him out at Everton in the coming weeks as he attempts to steer the United juggernaut back on course, although whether he has the tools at his disposal is doubtful.
The defence has looked vulnerable so far this season while the lack of flair in midfield and inconsistent displays from wide men such as Nani and Ashley Young are starving the strikers of the quality service they once thrived on.
Robin van Persie and Wayne Rooney remain the jewels in United's crown and Moyes will need plenty of goals from both over the coming months to at least keep United in touch with the Premier League pace setters.
Expectations have dipped in a surprisingly short space of time but languishing around in mid-table for too long is unthinkable at England's most successful club.
Reuters / Eurosport