Neville also questioned Amorim's tactical setup since he joined United, as the Portuguese coach has been deploying a three-man defence with uber-offensive wing-backs. However, the approach has not worked so far.
The United legend added: "The system is a problem. I have asked this question for two months. Who are the natural wing-backs, players good enough going forwards who have great energy and players good enough going back? Who are these two players they play behind the striker?
“They need a centre-forward to carry the line - who is that player that is available who would go to Man Utd? There are seven or eight teams at the top of the league who need a striker. You aren’t going to Man Utd ahead of Liverpool or Arsenal. There are massive issues.
“Honestly, you don’t know where to start or build the first step from. There’s a serious amount of time required and good recruitment for that club to get right.”