Ole Gunnar Solskjaer’s side were beaten 2-1 in Turkey after a forgettable performance which saw them create very little and defend very poorly.
The home side’s first goal was especially calamitous for the Red Devils as they had a corner themselves which they played short and gave away possession.
Inexplicably, no one was back and marking Demba Ba who was just inside his own half and a simple long ball set him in on goal, with the former Chelsea man comfortably finishing past Dean Henderson.
Scholes said the lack of organisation was embarrassing and could scarcely believe he was seeing it from a professional team, never mind a Champions League outfit.
‘That’s completely down to organisation at the corner, surely you always have somebody back on the halfway line,’ Scholes said on BT Sport.
‘You can see [assistant manager] Mick Phelan on the side pointing to [Nemanja] Matic, saying “You should be there!” You’re always goal side!
‘It’s like Under-10s football. One behind, one in front. You can understand if it’s last minute and you’re going for a goal.
‘But this is after what? 15 minutes. It’s embarrassing. What the back four were doing, I’ve no idea.
‘It’s comical, it’s laughable what has happened. They’ve got nobody within 20 yards of their centre-forward.’
Another former Manchester United man, Owen Hargreaves, admitted: ‘I’m not sure I’ve ever seen a goal like it, honestly.’
‘The first one, we play a short corner and forget about the man up top, which is unforgiveable,’ said the Norwegian.
‘Performance wasn’t good enough against a team that worked and ran. They hit us on the break a couple of times scored a couple of goals like you do in Europe when you don’t defend well enough.’
Edin Visca scored the hosts’ second before an Anthony Martial header before half-time, but United couldn’t find anything in the second stanza to secure a point or more.