I cannot understand on what basis you could remotely consider Rashdford to be “ world class” ?
He’s had spells where he’s played very well and he’s scored some brilliant goals, but it’s no more than dozens of other footballers have done across all the leagues.
There’s been nothing in the way of consistent displays of outstanding skill, or breathtaking play and his continued lack of inconsistency clearly isn’t a blip, when looking at his entire senior career up to this point.
Although he’s still young at 23 and has plenty of time to develop and improve his game, there are basic, fundamental weaknesses in his ability, of the sort that will never improve. He is what he is.
I‘ve no doubt with the right coaching and a much improved level of motivation and commitment (and boy does he need that), Marcus can continue to be an important member of the Utd squad; but unfortunately, ”world class” is something he’ll never be close to achieving.