Manchester United have parted ways with Ruud van Nistelrooy, after Ruben Amorim took over as head coach. Minutes after Ruben Amorim was pictured arriving as Manchester United head coach, it was announced Ruud van Nistelrooy would be leaving. Van Nistelrooy is one of four staff members departing, making way for Ruben Amorim’s new coaching team. United broughtVan Nistelrooy in to work on Erik ten Hag’s coaching staff in the summer, before he was fired at the end of October. Van Nistelrooy then stepped up in interim charge, winning three and drawing one of his four matches in charge. Premier Leag…