Manchester United teenager Harry Amass is making excellent progress for the Red Devils and is on the cusp of a first team debut. Sometimes the deals Manchester United strike at youth level turn out to be the best of the bunch. Back in 2020 a disastrous summer of transfers headed up by Donny van de Beek at £35 million, was rescued by signing Alejandro Garnacho for a six-figure fee. We just didn’t know at the time how important it would be. Willy Kambwala also signed that same summer and has just made the step up to the first team, so these youth deals can take a little time to heat up, and some…