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

Head coach Ruben Amorim argues that changing Man Utd's tactical system due to media noise would have been "the finish" for him.

In a first against Newcastle United, Amorim moved away from his trademark three-at-the-back formation with wide defenders and instead use an traditional four-man defense with two holding midfielders.

By his own admission this ultimately transformed into a back six in the latter phase as his team held on for a crucial result - securing only their second shutout of the campaign.

Despite he once notably remarked that not even the highest authority could force him to tweak his system, Amorim maintains the capacity to experiment with varied formations has consistently been part of his long-term vision.

However, he emphasizes he could only alter the tactics when his team were doing well enough - or else it would seem as if he was giving in to external pressure.

"When I came here last season, I understood maybe I lacked the players to play well in that system, but it was the beginning of a journey," he commented.

"The goal was to establish an style. Today is a separate time. We don't have a full complement of personnel, and we must adjust, so they see the reason we are changing.

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

"Whenever you talk about changing the formation constantly, I cannot change because the squad will understand I'm changing because of you and I think that is the downfall for the manager.

"Once we are playing well in our preferred setup, that is the moment to change.

"This will help us develop into a stronger side because when our full complement of players are available, we are not intending to play with three defenders in every match."

Availability Crisis Loom Large

Having just two wins in eight games before beating Newcastle, it is questionable whether Amorim is right to claim his team have been playing well.

He is, nonetheless, managing with a depleted squad, with seven senior stars already confirmed absent for the upcoming home game against winless Wolves.

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

Skipper Bruno Fernandes is a key name who will be absent for the Wolves clash, despite the fact he is reportedly pushing his manager to let him to return after his hamstring injury.

"Bruno is already telling me he needs to train," revealed Amorim. "But there is no chance he is going to play against Wolves. Definitely not. You can quote me on that."

The Captain's Role Is Unwavering

Nevertheless, the 31-year-old will likely still be heavily involved, as whereas most unavailable players watch matches from a private box, Fernandes was spotted keeping a close eye on the pre-match routines from the entrance of the tunnel before the Newcastle game.

Amorim expects his captain to carry on providing insight.

"The guy is a leader," he affirmed. "He must not be the type of player that when he is absent, he's not talking and offering advice. He's always speaking. That's why he's the skipper.

"There are flaws sometimes - his mannerisms he moves his arms - but he has a lot of strengths. Even after he finishes treatment, he heads to watch the other guys practicing. There are a lot of things that go unnoticed.

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

Recovery Schedule for Key Personnel

Although the precise date for Fernandes' return - and that of fellow unavailable players like Kobbie Mainoo, Matthijs de Ligt, and Harry Maguire - remains unclear, before the conclusion of January, United will welcome back Noussair Mazraoui, Amad Diallo, and Bryan Mbeumo from international duty.