"I'm going to have assistant coaches, I'm going to have fitness coaches, and a structure where they have specialists in different areas connected to the performance. Hopefully it still fits in a couple of years" time'.
Mourinho and Faria have one more game together as United face Chelsea in the FA Cup final at Wembley next Saturday.
However, Mourinho says he won't even seek a new assistant, passing up the opportunity he has been presented with. This was the final chance to cut the cloth clean.
Earlier this week Mourinho's number two man Rui Faria announced in a statement that he will be leaving the club at the end of this campaign.
"I'm not so sad because it's just the end of his career as a player, but he stays with us and I'm always more connected to the person than the player; people are more important to me than players, so I'm going to have him stay with us, and because of that I'm not so sad".
Carrick said he is considering moving into management one day but it is not something he intends to push for yet.
Speaking in the aftermath of the win over the Hornets the 36-year-old expressed his excitement at the opportunity that had been handed to him by the Portuguese.
Prince Harry and Meghan Markle's relationship
"I've been popping Valium for the pain, especially when I hear about my oldest daughter", Markle Sr. reportedly told TMZ . The announcement was met with an outpouring of support for both Ms Markle and her father on social media.
"If that moment arrives, I will be a very proud guy because this man came to me when he was a kid 17 years ago".
Do great players make great managers?
Wales boss Ryan Giggs and England women's head coach Phil Neville are two high-profile examples, but Carrick stresses that being a good player will not automatically make him successful in his new role. "You never know what is going to be around the corner".
It is no coincidence that Manchester United were at their entertaining selves in the first few weeks of 2015/16 - when Luke Shaw played like the Luke Shaw at Southampton - a daring go-getter of a full-back who could really hurt the opposition with his pace and directness on the ball.
Carrick - signed for £18m from Tottenham - joined the Red Devils seven months after Keane's departure. "I'm sure that will be the case again".
He said: 'You've got to go step by step.