Beleaguered Manchester United boss Ruben Amorim admits that he's already questioned his decision to take the job mid-season. Amorim, 40, initially wanted to spend the rest of the campaign at Sporting Lisbon before United convinced him and his coaching staff to make the move in November . Since replacing Erik ten Hag and taking over from interim manager Ruud van Nistelrooy , Amorim has won just four of his 14 Premier League games in charge. The Portuguese coach will hope to guide United to their