Speaking to the Metro, Gary Pallister said: "Alejandro Garnacho is at the right age and he is now doing it at international level. He is certainly making a point for himself, you've also got James Garner back from his spell at Nottingham Forest.
"I'm sure he is the same boat. We've also got Hannibal Mejbri, there are big expectations for him. You would like to think these guys can push themselves into the reckoning. These guys will buoyed by what they did last season.
"Garner playing a role in a promotion-winning side, Hannibal making his debut, Garnacho scoring the FA Youth Cup-winning goal now playing for Argentina. They are making progress and they are giving Ten Hag options.
"They will be knocking on that door. The squad needs hunger to be successful. You couldn't say that about the team last season, there were so many abject performances when the heads went down and there was no real fight."
Garnacho and Mejbri could have a role to play in the first-team squad next season, especially if Manchester United fail to sign enough new players.