Rashford only lost his ever-present status during January's defeat at Tottenham Hotspur, when he was ready to come on before fellow substitute Marouane Fellaini sustained an injury, forcing a tactical rethink.
Manchester United are expected to spend big again in the summer transfer window to make sure they are contenders again next term, but Macari believes it is essential they look to have a settled squad next season. Mourinho did not identify them, but he has publicly questioned the likes of Anthony Martial and Luke Shaw in the past.
His final game for the club will be on Sunday at home to Watford and his manager has confirmed that the midfielder will start the match as a tribute for his years of service to the club.
When asked whether Rashford could be loaned out next season, Mourinho simply replied: "No".
How many points separate us from Manchester City? Not two, three or four but a lot of points.
"I give my assistants very good conditions for their evolution and I think Michael can be very positive for us".
3 critically hurt in South Africa mosque attack
The Reaction Unit SA emergency service says the three are fighting for their lives after an attack by three Indian male suspects. The incident has sparked fury among the North Coast community with many claiming that it was a terrorist attack.
Meanwhile, Mourinho said that the United squad needs improvement in the off-season, and that current squad members need to be "more consistent" and show "more quality" on the pitch.
"He impresses me. That's the reason why he was selected for every match of the season - absolutely every match of the season - and that's why he played in so many of them". I work with them for a couple of years. I understand them better than anybody.
He told Canal Plus: 'I do not have any problem with Mourinho, I do not think he has either. You buy a central defender you don't like, you buy another one. Unless you can do that, and you go in the direction of the flawless squad, you have to keep players you don't love and players you don't totally believe have the level of the squad.
Jose Mourinho has made eight changes to his Manchester United line-up for Thursday's penultimate Premier League fixture at West Ham.
Mourinho has no plans for a major overhaul of his squad, arguing he does not have the finances to buy players at will, which could be interpreted as a criticism of Manchester City.