Mourinho has already confirmed Carrick will be in his starting line-up on Sunday and fellow midfielder Herrera now wants to make the day all about a man who has been at the club since 2006. "For many months you are always asking me why this player doesn't play, why that player doesn't play, why this player is on the bench, why always Lukaku?" Mourinho, since the shocking Champions League defeat to Sevilla, has raised concerns over some of his players' mentality and attitude, going further to doubt whether some have the required level of quality to play for Man United.
"After a lot of consideration, and with a very heavy heart, I have decided the time is right for me to move on", Faria told United's website.
Carrick's addition to the coaching staff isn't the only change at United, with assistant coach Rui Faria ending his 17-year partnership with Mourinho.
"My heartfelt thanks go to the manager, Mourinho, for the belief he had in me, all those years ago, when it all was just a student dream". I want to thank him for the chance and confidence, for the information and expertise, however most significantly for his friendship. It's the greatest club in the world and I thank you for your support for the last 12 years. "I want to say a giant 'thanks" to all of the workers and gamers who, in numerous methods, have made an vital contribution to my development as an individual and as knowledgeable.
And while he admits to entering unknown territory, Carrick is relishing the opportunity, believing that learning from Mourinho will help him discover his own philosophy.
"The intelligent student is now a football expert, ready for a successful career as a manager", he said. "Training, playing, travelling, studying, laughing and also a few tears of happiness", the Portuguese said.
'Seventeen years and the child is now a person.
Mourinho and Faria have helped the club secure second place in the top flight ahead of the latter's departure.
The pair have one more vital match together, in Saturday's FA Cup final against their old club Chelsea.