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This was suggested by talkSPORT's chief football correspondent Alex Crook as the Red Devils floundered to a humiliating loss against the Italian side making their first ever appearance in the competition.
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It was a deserved result for Man United, who offered next-to-nothing going forward as well as being overrun in midfield and defence.
The three-time European champions fell behind just two minutes into the game through Nico Paz's beautiful curling effort.
Carrick's men were fortunate to get in at half time just a goal down but on a rainy evening in northern Italy the floodgates opened after the interval.
Como doubled their advantage through Anastasios Douvikas four minutes into the second half.
Paz then got his second before Jacobo Ramon rounded off a miserable game for Man United.
Joshua Zirkzee, who came on for below par Bruno Fernandes in the second half, struck in stoppage time to earn the scantest of consolation goals.
It won't represent a crumb of comfort for Carrick with pressure only increasing on the former Red Devils midfielder.
Although Crook suggested that the club will wield the axe on Carrick after this latest woe, as he said on commentary for talkSPORT: "I'm not sure Carrick's going to survive this. 4-0."
This defeat marks the first time since 2015 Man United have gone seven matches without a win.
Former Premier League player Scott Minto added: "There's nothing positive to take from this, nothing. With the ball, without the ball, they're poor both as a team and individually."
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At full time, Minto added: "It's a nail in the coffin for Carrick, I feel for him."
After a strong interim spell in charge last term, the wheels have come off for Carrick's Man United this season.
Having lost two of their three Champions League matches this season, it's been painful on a domestic front with Man United winning just one of their seven league matches.
Meanwhile, they are already out of the Carabao Cup having lost 3-2 at home to Brighton in a match they led 2-0.
It's a divided club with defender Lisandro Martinez criticising Man United sporting director Jason Wilcox over a lack of summer investment in a bombshell interview after defeat to Atletico Madrid last week.
Martinez later confirmed positive talks with the club subsequently took place, however, there are no signs of things improving on the pitch.
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Up next for them is a league clash at home to Bournemouth with Man United looking to improve on their 13th-place spot in the table.