Jose Mourinho's side remain seventh in the table, while Mark Hughes' men move above Burnley into 18th on goal difference, but are without a league win since September 1. "(Not winning) has to do with the characteristics of the players.
We lost so many balls in the transition to the last third.
Immediately after the game, Mourinho cited United's lack of "mad dogs" as the reason for their second successive draw in the Premier League, but thought one player brought a particular bite to their performance.
Mourinho's decision to start with two holding midfielders in defence, Nemanja Matic and Scott McTominay, was lambasted by fans and the lethargic nature of the second-half display also tipped people over the edge.
Mourinho will be without captain Ashley Young who picked up his fifth yellow card against Southampton.
"Manchester United feels like a football club which is having to overpay to keep players because they are not in a position of strength, they are running their contracts down basically", Neville said.
Mourinho used the example of Tottenham, who were seemingly a selling clubs around ten years ago when players like Michael Carrick, Dimitar Berbatov, Gareth Bale and Luka Modric left to win trophies with bigger clubs, to highlight the power struggle now present in the market.
De Gea was flailing at the effort, and Saints had a 2-0 lead.
"Honestly, I don't think we are going to sign (anyone)", said the United manager, who has made a new centre-back his priority.
It is the latest in the Mourinho/Pogba saga as the ex-Chelsea boss stripped the World Cup victor of the vice-captaincy earlier in the season as he criticised the side style of play before a heated training confrontation with the gaffer.
The 25-year-old is 11/2 to leave Old Trafford in the upcoming transfer window with Barcelona his most likely destination at 10/1 with Juventus following at 16/1.