You're wrong again on Gotze, he plays both flanks too. I used to do analysis on Gotze ffS, i'd near enough watched every game he played in 13-14. for a start he can dribble his man, though he particularly enjoys beating his man with a pass around the corner before sliding a pass across the 6 yard box with with right foot. ( YES THATS WHY HE DOESNT CUT IN ALL THE TIME FROM THE RIGHT, HE IS RIGHT FOOTED). Gotze goes left or right past his man when on the right and side, or right past his man when on the left hand side.
Again width doesnt have to come from dribbling, it comes from your positioning. Pedro is the perfect example of this. Width does not mean crossing from the byline. Ribery and Robben both keep width for Bayern, both of them are inside forwards with their strong feet on the inside.
Incorrect against newcastle, we actually beat the deep block numerous times, what we didnt have is anyone to nod the ball into the next, or Herrera to exploit Mata's movement, and we had 3 gilt edge finishes behind the deep block we missed (Depay, Mata, Hernandez)
Di Maria doesn't go past his man on the outside, unless he is going for the rabona
Ok fine I'll bow to your superior knowledge on Gotze and perhaps you're right, but I'd still argue we have plenty of no.10's already who he would hinder by coming in without already trying the players we have now. Pereira can play out-wide, why not try him? There is alternative solutions right now that can be made to address this issue, such as trying Depay on the right or putting Januzaj out there instead to offer more width rather than Mata. You could actually have Young on the left and Depay on the right, you'd imagine because he's right footed he'll favour going outside his man more often rather than constantly cutting inside.
I know btw someone asked me what I define as a proper winger so I was just telling them. Although that isn't correct about Di Maria he often favours beating his man down the line when played on the left wing. Plenty of times he done it in Copa America. If we're honest we didn't see the best of Di Maria enough to really analyse and he was moved all over the place position wise under Van Gaal, never really got the best out of him.