Lille sporting director Luis Campos has hinted Jose Mourinho lacked support at Manchester United.
Campos was one of Mourinho's assistants at Real Madrid and remains a good friend of the former United boss.
"I speak to Jose every week, sometimes every day, and I saw that Jose, in my opinion, had difficulties in Manchester because the club has another culture, which I respect of course," Campos said.
"If the coach is alone heʼs an easy target and he needs help. Everyone needs help in football. You canʼt play alone. Manchester United is an amazing club with an amazing story and for people around the world, it's difficult to understand what has happened to this club.
"Itʼs difficult to see this club in difficulty, but if this difficulty is arriving itʼs because you have one problem. In my opinion the problem is sensibility. Itʼs important to work together. Sporting with economy. If you donʼt put these things together I believe you are heading for disaster."