Jamie Redknapp accused Man United of lacking identity after Rangnick’s side fell to a 1-0 defeat at home to Wolves.
Rangnick has struggled to get the best out of United’s players since being appointed as interim manager, and Redknapp believes that the German’s 4-2-2-2 formation doesn’t work.
After a dour first half display, Rangnick switched to three at the back. But Redknapp says his tactics aren’t working.
He said: ‘We speak about managers coming into the game and he came in with this famed 4-2-2-2 system – it doesn’t work.
‘When you come here, you have to have the right players. It doesn’t matter what system you play. Then he went to a three at the back. Today he played 4-4-2 and at the end of it, I think he’s making up systems. There was no real identity of how they were trying to play.’
Redknapp continued: ‘The Watford performance (losing 4-1 in Ole Gunnar Solskjaer’s last game in charge) was a real low for Manchester United. But I’m sure the Manchester United fans will have looked today and thought, “At least we’ll look to be exciting going forward”, but there was nothing today. They never had control of the game’.
‘When you watch Manchester City play and all the best teams, they have control in the midfield. United never had any control of that midfield today. Never once have they played passes to each other, they never had an ability to just take the sting out of the game, to get some confidence.’
Redknapp also pointed out that it is important for United to find a manager who will be at the club for the long term. Rangnick is set to be in charge until the end of the season before continuing in a consultancy role for two years.