I think they were riding their luck a little this season with the selections and today against the best side they encountered, it got messy. 2 midfielders in defense and of course as you say the central midfield, LVG got it very wrong.
It didn't help that Rooney was their as well. LVG should bring in Jones as centre half to partner Smalling and then play a proper full back instead of Young and Valencia who despite their effort are not natural full backs which is why they have been exposed recently.
I actually thought Darmien was the worst player on the pitch in the first half, obviously plenty of competition!
Strange after such a epic start to the season, he has thrown in some absolute horrid performances.