Rashford/Martial is very young, did they have time to prove? What they did last season is more than enough to me as a proof that they are extremely talented. Young talented players are logically unproven at the beginning, that's why they are termed as "Promising".
I have never seen Aubameyang dribble past players like Rashford/Martial can do. Our strikers need to be able to dribble in narrow spaces as United always play against packed defences. Technically Aubameyang is one dimensional, he's all about pace, not much guile in his game either, even a young Rashford has far more guile in his build up play.
Read my post carefully. I never said players from Bundesliga are mediocre. If they were, would I list Robben/Ribery among top players or would I rate Lewandowsky so highly(I'd take him at United at a heartbeat)? I just rate very few players as world class, Aubameyang isn't a world class player, nor is Mata, Mkhitaryan. Aubameyang has not performed like Lewandowsky did against the very best, that's what my criteria is to be counted as world class.
At this very moment, I'd break the bank to buy Paolo Dybala. I haven't seen him much, but what I have seen from him, I was WOWED. He seems to be a very creative striker, decent dribbler, excellent cerebral ability during build up play.