Van Gaal has overseen a disappointing campaign at Man United this season in which his side have failed to secure Champions League qualification and supporters have called for his sacking even if the team wins the FA Cup on Saturday.
Mourinho, meanwhile, is said to be waiting in the wings to take over at Old Trafford having been sacked by Chelsea earlier this season. Henry had mixed feelings when asked about the subject.
“Manchester United not being in the Champions League is a big question on Louis van Gaal. The only problem with Manchester United is that you are already going to be compared to Yorke, Cole, Giggs, Beckham, Keane, Scholes and Ferdinand.
There is certainly a question mark over whether Mourinho is the right man to lead United. His off-field antics and history of neglecting young players goes against the traditions of the club.
But supporters are agreed on one thing: van Gaal cannot continue to take charge of United. Another season of his dire football would be disastrous.
Mourinho is a proven, world-class manager and United would be wise to bring him in. It is not every day a manager of such calibre is available and van Gaal seems to have lost the confidence of his players.