The moment is right to alter Man Utd's system - Amorim declares.

Head coach Ruben Amorim argues that altering Man Utd's tactical system due to external scrutiny would have signaled "his demise" for him.

In a first against Newcastle, Amorim abandoned his trademark back three setup with wing-backs and chose to use an standard four-man defense with two central midfielders.

By his own admission this effectively functioned as a six-man defensive block in the latter minutes as his side dug in for a win - securing only their second clean sheet of the campaign.

Although he once famously stated that even the Pope could compel him to adjust his approach, Amorim maintains the option to play with alternative setups has remained part of his plan.

Nevertheless, he stresses he could only make the switch when his team were faring at an acceptable level - or else it would appear as if he was giving in to outside pressure.

"When I arrived here last season, I recognized maybe I don't have the personnel to perform effectively in a back three, but it was the commencement of a journey," he commented.

"We were trying to establish an philosophy. Today is a distinct moment. We are missing a full complement of players, and we must adapt, so they see the reason we are changing.

"The change isn't because of the influence of journalists, or the faithful.

"Whenever the press talk about altering the system all the time, I can't change because the players will believe I'm altering things because of external voices and I think that is a disaster for the coach.

"Once we are performing strongly in our system, that is the moment to evolve.

"We will become a better squad because when all the players return, we are not planning to use three defenders in every match."

Squad Challenges Persist

With just two victories in their last eight outings prior to beating Newcastle, it is questionable whether Amorim is accurate to claim his side have been in good form.

He is, though, working with a depleted squad, with seven first-team stars already ruled out for the forthcoming fixture against struggling Wolves.

That total will grow if midfielder Mason Mount fails to shake off the knock that led to his withdrawal from the Newcastle game at half-time.

Skipper Bruno Fernandes is among those who will miss the Wolves match, even though he is reportedly urging his boss to allow him to make a comeback following his muscle problem.

"Fernandes is already telling me he has to practice," said Amorim. "However there is absolutely no possibility he is going to play against Wolves. No chance. That's definitive."

Fernandes' Leadership Remains

Nevertheless, the 31-year-old will likely continue to be a prominent presence, as whereas most unavailable players watch matches from the stands, Fernandes was seen keeping a close eye on the warm-ups from the entrance of the tunnel before the Newcastle game.

Amorim expects his leader to continue providing guidance.

"He is a natural leader," he affirmed. "He cannot be that guy that when he is absent, he's silent and offering advice. He's always communicating. That's why he's the skipper.

"There are bad things at times - his mannerisms he gesticulates - but he has a lot of good things. After he recovers, he goes to watch the rest of the squad practicing. There are a lot of aspects you don't see.

"I'm not sure if he desires my job or not, but he's a leader. He is a true captain."

Return Schedule for Key Personnel

Although the specific timeline for Fernandes' comeback - and that of fellow injured stars like Kobbie Mainoo, Matthijs de Ligt, and Harry Maguire - remains uncertain, by the end of January, United will welcome back Noussair Mazraoui, Amad Diallo, and Bryan Mbeumo from international duty.