I haven't really hung him out to dry, seems a huge exaggeration based on this post:
It remains my opinion if you play 3 at the back, the WBs need to be wingers. We had many more wingers when he came and the only one we ever saw there was Amad, who was generally better there as he is a natural RW. The entire point of this setup is width/having offensive players in wide areas (whether they overlap or come inside) and yet the bulk of what we have seen is Dalot/Maz who then get slated because they generally come undone as soon as they are in attacking areas.
I agree with you about wingers as as WB’s and looking at Amorim’s choices at Sporting, it seems he does so too. If I understood correctly, he started out with FBs as WB’s, but as soon has he found/brought in candidates, he opted for wingers retrained to those roles.
At United, it was only natural to start out with Dalot and Mazraoui to get the defensive security in place first, and given that Shaw and Malacia was out (indeterminately).
If he should then proceed to try to convert some wingers to WBs, the options were Amad, Rashford, Garnacho and Antony.
He did this with Amad and got a promising response. Unfortunately, Amad also seemed to be a necessary cndidate for the no10 spots, given the issues there. Now he’s out either way.
Antony delivered a bit of this and that, and was no worse at WB than at inside forward and previously at wing. His issue is physicality and confidence, and now he’s loaned out.
Rashford and Garnacho are quite similar, in that they are very much forward, very much wide player. Amorim’s 3-4-3 needs wingers who can also be trusted defensively, and forwards who thrive centrally/cutting in. Rashford and Garnacho are both weak in both these aspects, which is to say they are a bit one dimensional specialist type players. They both were challenges to work on their play styles to ameliorated one of these weaknesses at least. It seems Garnacho was willing to do this, Rashford was not.
Garnacho has hardly been used as a WB, and my guess about that is that it must mean his weaknesses and/or his willingness to adapt to the defensive demands of a WB role just leaves too much to be desired compared to players like Quenda, Nuno Santos, Amad or Antony.
I think many of United’s on paper best players would fit a 3-4-3 like this: De Ligt, Martinez, Ugarte, Casemiro, Shaw, Bruno, Mazraoui, Mount and Amad should all fit it well. Unfortunately, 4 of those are out injured and one has declined heavily.
Rasshford and Garnacho are the odd ones out, unfortunately both in the same position. As a result, we are weak in both WB options and 10 options, and the WB options left are defensive with little to contribute as wingers, and the last option is a 20 year old new to the league newcomer who can’t expect to do much heavy lifting this season.
Attacking wise, I don’t think we’ll see much improvement until next season, and even that is probably dependent on a new midfielder/no10 and a new striker.