Mourinho opened fire on his players after a 1-0 defeat to West Brom, insisting his biggest stars did not have the right mentality.
Neville has echoed Mourinhos comments and predicted the United boss will look to gut his side of the troublemakers this summer.
The start of the season was Jose Mourinho trying to rid themselves of these kind of performances against lesser teams, Neville said on Sky Sports.
Jose Mourinho refereed to lack of urgency, lack of consistency before the game. Hes got to rid this team of that.
And that sometimes mean changing the way players believe or identifying the players who are causing that problem. They need to go and he needs to replace them.
Mourinho called his players masters of complication and hit out at Paul Pogba for lacking focus and seriousness.
Pogba has endured a stop-start season that has seen Mourinho repeatedly drop his most expensive signing.
And asked how many players could be axed in the coming transfer window, Neville said he expects at least four big names to be booted.
Manchester United 2017/18 Fixtures
Bournemouth (A) – Wed 18 April
Tottenham – FA Cup (N) – Sat April 21
Arsenal (H) – Sun April 29
Brighton (A) – Fri May 4
West Ham (A) – Thurs May 10
Watford (H) – Sun May 13
I think there will be three or four leaving and three or four coming in. I think theyll be big players, he said.
The defence needs reshaping. Hes got to make that gap up and thats a big gap. Jose Mourinho has built a reputation on attitude.
His teams have always been resilient, tough to beat. You should never be questioning a Jose Mourinhos teams attitude.
Consistency is about mentality. Its about coming back each week and producing the same standards you produced the previous week. These players have fallen well below that.
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