Time is optimal to change Manchester United's system - Amorim insists.

Head coach Ruben Amorim contends that changing Manchester United's tactical system due to public pressure would have meant "the end" for him.

Initially against Newcastle, Amorim abandoned his customary back three formation with wide defenders and opted to field an orthodox four-man defense shielded by two defensive midfielders.

Amorim acknowledged this effectively transformed into a back six in the closing minutes as his squad clung on for a crucial result - securing just their second-ever shutout of the campaign.

While he once memorably stated that even the Pope could compel him to adjust his approach, Amorim maintains the option to utilize alternative setups has consistently been part of his long-term vision.

However, he clarifies he could only alter the tactics when his team were performing well enough - otherwise it would seem as if he was giving in to external noise.

"When I came here last season, I understood maybe I don't have the players to perform effectively in a back three, but it was the start of a process," he commented.

"The goal was to forge an identity. Today is a separate moment. We lack a lot of personnel, and we need adapt, so they understand why we are changing.

"This isn't because of the demands of the media, or the faithful.

"Whenever you discuss altering the system repeatedly, I can't make a change because the players will think I'm altering things because of you and I feel that is a disaster for the manager.

"Once we are performing strongly in our system, then is the right time to change.

"We are going to develop into a stronger team because when our full complement of personnel are available, we are not going to use three defenders in every match."

Availability Crisis Continue

With just two wins in eight games prior to defeating Newcastle, it is questionable whether Amorim is right to say his team have been in good form.

He is, though, operating with a depleted squad, with seven first-team players already ruled out for the upcoming home game against struggling Wolves.

That total will rise if playmaker Mason Mount fails to recover the knock that led to his withdrawal from the Newcastle game at half-time.

Skipper Bruno Fernandes is one of those who will be absent for the Wolves clash, even though he is reportedly pressing his boss to allow him to return following his muscle problem.

"Bruno is already saying he has to practice," revealed Amorim. "However there is absolutely no possibility he is going to play against Wolves. No chance. You can quote me on that."

Fernandes' Role Is Unwavering

Nevertheless, the Portuguese star will probably still be a prominent presence, as whereas most unavailable players view matches from a private box, Fernandes was observed monitoring the pre-match routines from the entrance of the player's tunnel before the Newcastle game.

Amorim expects his leader to carry on offering guidance.

"He is a leader," he declared. "He cannot be that guy that when he is absent, he's not talking and offering advice. He's constantly speaking. That's why he's the skipper.

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

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

Return Timeline for Key Players

While the specific date for Fernandes' comeback - and that of other unavailable players like Kobbie Mainoo, Matthijs de Ligt, and Harry Maguire - remains unclear, before the conclusion of January, the club will see the return of Noussair Mazraoui, Amad Diallo, and Bryan Mbeumo from continental duty.