That loss was Amorim’s 16th Premier League defeat in 31 matches, which has created pressure on the Portuguese coach.
However, he clings to his principles and brings such great success in the sport, claiming he clings to his 3-4-2-1 formation.
“No one, even the Pope, is different (my system),” Amorim said.
“This is my job, this is my responsibility, this is my life, so I won’t change it.
“If I’m a player and there’s a coach around the world who says “I need to change the system,” then I say, “I’ll change.” They see me differently.
“It all matters when you think about the impact that decision will have on your team.
“I’m doing things my way. I want to have time to change, but that’s an evolution.”
United’s Welcome Chelsea are the team that has not won at Old Trafford since May 2013 when Juan Mata scored a late winner against Ir Alex Ferguson’s team.
Matheus Cunha, a player who scored a hat-trick against Chelsea for the wolves two seasons ago, is set to return to the starting lineup after recovering from the hamstring tweak he suffered against Burnley.
It presents more offensive threats, and while Brian Mbeumo was left to attack himself mostly in Etihad, he has involved club captain Bruno Fernandez in a deeper role.
Amorim once again claims to be part of his plan to “balance the team.”
“I want Bruno to own more to try and control the game,” he added.
“Maybe he doesn’t have the same freedom to go inside the box, but he’s there and he can take his shot.
“I miss Bruno a while back sometimes, but if Cunha is there, there are extra players.
“I just try to balance the team and imagine the game, and I see Bruno.
“He’s frustrated because he’s not winning and sometimes he likes to go even further, but there’s work to do.”
