Rene Meulensteen believes Louis van Gaal will have to overhaul the Manchester United squad.
Meulensteen left United last summer following the retirement of Sir Alex Ferguson.
"He's been given the task to sort of rebuild United from two perspectives basically," Meulensteen told Sky Sports.
"Obviously he has to have a look at the team and see what's left with obviously Vidic leaving, Rio Ferdinand leaving and one or two others. He needs to have a good look at that."
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