Time is optimal to change Manchester United's formation - Ruben Amorim states.

Manager Ruben Amorim says that switching Manchester United's tactical system due to public noise would have meant "the end" for him.

For the first time against Newcastle United, Amorim ditched his usual three-at-the-back formation with wing-backs and chose to deploy an traditional four-man defense with two holding midfielders.

He himself conceded this ultimately functioned as a back six in the final phase as his team clung on for a victory - securing only their second-ever shutout of the campaign.

While he once memorably remarked that not even the Pope could pressure him to adjust his system, Amorim asserts the option to utilize different setups has remained part of his plan.

Yet, he clarifies he could solely implement the change when his team were faring sufficiently well - otherwise it would appear as if he was giving in to external noise.

"When I came here the previous campaign, I understood perhaps I didn't possess the players to excel in that formation, but it was the commencement of a journey," he said.

"The goal was to establish an philosophy. Currently is a separate juncture. We lack a full complement of personnel, and we have to be flexible, so they comprehend why we are making changes.

"This isn't because of the influence of journalists, or the supporters.

"Whenever you talk about altering the formation all the time, I can't make a change because the players will believe I'm altering things because of you and I think that is the end for the coach.

"Only when we are performing strongly in our preferred setup, that is the opportunity to change.

"We will become a better team because when all the personnel are back, we are not going to play with a back three all the time."

Squad Crisis Continue

With just two victories in their last eight outings before beating Newcastle, it is debatable whether Amorim is right to claim his team have been in good form.

He is, though, working with a injury-ravaged roster, with multiple senior players already unavailable for the forthcoming home game against struggling Wolverhampton Wanderers.

That figure will grow if midfielder Mason Mount is unable to shake off the injury that led to his withdrawal from the Newcastle game at the interval.

Captain Bruno Fernandes is among those who will miss the Wolves clash, despite the fact he is understood to be pressing his boss to let him to make a comeback after his hamstring problem.

"Bruno is already saying he needs to train," revealed Amorim. "But there is absolutely no possibility he is going to play against Wolves. Definitely not. That's definitive."

Fernandes' Influence Is Unwavering

Nevertheless, the Portuguese star will probably continue to be deeply engaged, as whereas most injured stars view matches from the stands, Fernandes was observed keeping a close eye on the warm-ups from the entrance of the player's tunnel before the Newcastle game.

Amorim expects his captain to carry on providing insight.

"He is a natural leader," he stated. "He must not be the type of player that when he is absent, he's silent and offering advice. He's always communicating. That's why he's the captain.

"There are negative aspects sometimes - his mannerisms he moves his arms - but he has a multitude of positive qualities. Even after he recovers, he goes to observe the other guys practicing. There are a many things you don't see.

"I don't know if he wants my job or not, but he's a born leader. The guy is a leader."

Return Schedule for Key Personnel

Although the exact date for the captain's return - and that of fellow unavailable players like Kobbie Mainoo, Matthijs de Ligt, and Harry Maguire - remains uncertain, before the conclusion of January, the club will see the return of Noussair Mazraoui, Amad Diallo, and Bryan Mbeumo from continental duty.