There have been apparent disagreements between Jose Mourinho and a good few of his players already - some justified, some not - while recent signings have struggled to make an impact.
United now lie 16 points off Manchester City after just 14 games and it certainly looks like they'll face a real fight to even finish in the top four this year.
Mourinho lauded Nemanja Matic and Scott McTominay but was critical about the rest of his midfield. The result is not good so I have to say we dropped two points.
"We lost so many balls in midfield, so many balls in our transition to the last third that it was hard to have that continuity", he told BT Sport.
Robben played under "The Special One" throughout Mourinho's initial spell in the Premier League in West London, between 2004 and 2007, helping Chelsea win back-to-back titles and their first in half a century. And when the players don't understand that simplicity is genius, especially in some parts of the pitch, and they keep and keep and keep in going to complicated football it's hard to have that continuity'.
"In the second half we went back, again, to that dynamic when we lose too many balls in midfield".
"There were examples of players fighting to the limits - Marcus Rashford, Phil Jones and many others - showing that respect for the shirt and for the club".
"I thought he's been outstanding today", Owen told BT Sport.
Since Victor Lindelof is injured, Jones is the most likely to partner Smalling at centre-back, with Dalot finally making his league debut at right-back.
"It doesn't matter the system we play, it has to do with the characteristics of the players".
The duo can perhaps be excused to a certain degree, given they were playing out of position, but this was not a system or formation that favoured United, as they lacked the requisite intensity to really thwart the Saints, as well as the requisite resolution to stifle their attack.