Manchester United boss Ole Gunnar Solskjaer has no doubts about the market work they've achieved so far.
Solskjaer believes that summer signings Aaron Wan-Bissaka and Daniel James, who are both aged 21, will be important players for United for many years, while Harry Maguire will also have a major part to play.
Solskjaer said: "I think hard work is important, but you have to do the right work. I think we've got further in our shape work when we haven't got the ball than when we do have the ball. To create is more difficult than to stop.
"If you look at Aaron and Dan, 21-year-olds, they're coming in and doing a good job. We're not expecting them to be leaders, but they'll have longevity, and they'll stay in the club and the team for many, many years.
"Harry is a different player; he was the one centre-back we wanted, and the one we felt was the missing jigsaw in that defence. He was for now and the future, because he's only 26. I'm delighted with those three, both for now, and for the future."
