According to an inside source, captain Wayne Rooney and vice captain Michael Carrick have expressed their displeasure to van Gaal about his style of play and training methods however the 64-year-old is “not willing to changes his ways.”
Van Gaal, who has sold several players that were apart of Sir Alex Ferguson’s last title winning team in 2013, has also made changes off the pitch since he arrived at Old Trafford last summer.
The Dutchman has banned non-playing staff from eating with players at the club’s Carrington training complex.
He has also increased the number of team meetings before and after matches.
The insider said: “It was all a big family under Sir Alex.
“They all ate in the same place, from the tea lady to Wayne Rooney – but that’s gone now.
“They feel like they are wearing straitjackets. Everything is in zones. The feeling is that they are being turned into robots.
“Everything is structured. The manager enjoys a laugh but they rarely see that on the training ground. It’s a case of you work here and you have a laugh outside.
“He is set in his ways because they have worked before he is unwilling to change them.”
The source continued: “This has been coming for a while. While they were in America the manager left them in no doubt that pre-season would be demanding and intense.
“He wanted them solely concentrating on what he wanted to implement before the season started.
“But the players felt they were on a treadmill of sleep, eat, train, eat, sleep, train – and they were bored and fed up.”
Throughout his management career, in which he has won 11 major honours, van Gaal has had disagreements with several high profile players.
Zlatan Ibrahimović, Hristo Stoichkov and Rivaldo have all taken issue with his abrasive management style in the past.
During his 14 months in Manchester, van Gaal has fallen out with goalkeeper Victor Valdes and banished last seasons player of the year David De Gea from the first team while he was linked with a move to Real Madrid.
Not one senior player who departed the club in the summer followed the usual protocol of thanking their manager when they left.
United fans is van Gaal the right man to take your club back to the top of the Premier League?
Leave your opinions in the comment section.