Big difference between performance and trust imo.
He trusts Armstrong on the wing to carry out very specific instructions, be cautious, be defensive. See also: McNeil. Less so Dibling or George. That doesn't mean he 'performs' better than either of them as a winger in any other context.
….its about game management, he’s clearly not an authentic wide player but he’s seen as more effective in wide areas at that particular point in the match. Indeed,
Moyes has even started him out there.
The contrast is on the other flank where we have a genuine winger who contributes effectively, we obviously miss
Grealish which is why the Manager is having to make do with what he has.
McNeil did fine yesterday, I assume he’ll start on Tuesday and it’s up to him to make the spot his. Signs are really good for Armstrong, I’d be certain he’ll be a key CM for us in seasons to come, the Manager clearly likes him.