The club's head of first-team development has insisted there was never any issue with either manager when it came to nurturing young talent
Jose Mourinho and Louis van Gaal were harshly criticised for their treatment of academy stars at Manchester United, according to Nicky Butt.
United have endured a lean transitional period since Sir Alex Ferguson's departure in 2013, with David Moyes the first to fail in the top job at Old Trafford after being appointed as the legendary manager's successor.
Van Gaal was drafted in to replace Moyes at Old Trafford in 2014, and quickly set about stamping his own mark on the squad with a string of high-profile signings.