I can confirm what wewe if saying the role of an U21 coach is really essential for my pointer of you! But it's also essential a structure as I describe before cause great national team own a structure like this!! It's really important also to' see national coaches to' sacrify their team for U21 or NT: for example wewe saved two monster from retired I take two young players to' train them for NeXT season so there's also how is important for you to' sacrify!!And then information: for example if there's a player on TL really strong it' s important to' contact managers we know that Are able to' take him And train him!