Your point about Diego becoming a hate figure, not for myself I should add. I wish the fella well. I hope that at some future point he's capable enough to reflect and understand that advice has two sides. There are good agents, and then there are agents whose pockets are lined with the coin of young players too dense to grasp the machiavellian behaviour of someone who's your best friend today, and tomorrow, well tomorrow he'll not return your phone calls
As for comparing Diego with Done, if you're knocking on that first team door it's fair that expectations should have begun in earnest. There are young players who outperform seasoned professionals all the time, so why it's wrong to suggest that one player has come to a club where he knows no one else, the style of play is alien to him, yet manages to impose himself, against a player who has been schooled in the way United wish him to play, with years of guidance and repeated messages supporting his development, then yes, guilty of wanting Diego to show what he's capable of. It's not that he's played woefully, but that special something that is meant to mark him out, well perhaps it's awol. If Diego does go on to play against the elite of the elite then I'll be pleased for the guy. In footballing terms you don't remain a lad for too long, so I guess Diego's moment in the departure lounge of youth will quickly pass, and then everyone, amateurs and professionals alike, will be able to assess just how good he is.
As I wrote, if we'd had a 16-year-old Norwegian being chased by Real Madrid, conversations of this type would be redundant. As things stand, we have a young man who's decided to leave United. Again, I'll repeat, I wish Diego all the best. So no messages of hate or anything else so banal.