Former Chelsea manager Ruud Gullit has slammed Louis van Gaal's transfer activity at Manchester United, reports the Daily Star.
Gullit has insisted that the new United boss - who has endured a difficult opening period at Old Trafford - is 'crazy' for not strengthening the club's back-line during this past summer's transfer window.
United spent over £150 million on new players in the window, landing the likes of Radamel Falcao, Angel di Maria, Daley Blind, Ander Herrera, Luke Shaw and Marcos Rojo, but Van Gaal has been criticised for failing to replace the likes of Rio Ferdinand and Nemanja Vidic in the centre of defence.
Speaking to reporters, Gullit said: "I think he's crazy. When you build a house, you start with the foundations?"
"But Van Gaal is with the roof started. So then it crumbles. I really do not get it. I really do not understand why he did not start with the defence."
Manchester United have used a number of defenders already this season, but the player's have struggled to find form. The likes of Chris Smalling, Jonny Evans and Co. have failed to impress, whilst youngster Tyler Blackett has been thrown in at the deep end under the new regime.
Phil Jones, meanwhile, who has been United's best defender this term, is currently out with a hamstring injury, and United fans will be hoping that he returns sooner rather than later.
And, despite having signed some of the world's best players, United have endured a nightmare start to this season. Having already been dumped out of the Capital One Cup by League One outfit MK Dons, United have secured just five points from their opening five Premier League fixtures.
Manchester United's latest setback came at the King Power Stadium this past weekend, as they went down by five goals to three to Premier League new-boys Leicester City. Van Gaal will certainly be hoping that his team make a quick improvement as they go in search of climbing the Premier League table.
The Red Devils are next in action against West Ham on Saturday and will be desperate to secure all three points against Sam Allardyce's side.
Manchester United fans: Do you think Van Gaal will get it right at your club? Have your say in the comments section below!