Ruud Gullit has criticised Louis van Gaal for failing to address Manchester United's defensive problems over the summer.
The Dutchman has slammed his compatriot, for his determination to bring in a number of attacking additions rather than build a sturdy foundation to the team.
The Red Devils spent over £150 million on creating a side which looks intimidating going forward, but vulnerable defensively and Gullit feels that is was a major oversight from Van Gaal.
"When you build a house you start with the foundation," Gullit said to the Express.
"But Van Gaal has started with the roof. So then they crumble. I really do not get it.
"I really don't understand why he did not start with the defence. And now he really needs to address it."
United's defensive problems were exposed once again at the weekend when the Red Devils faltered against Leicester City.
Many had expected United to kick on after an impressive 4-0 victory against QPR, but their back-line gave way again against the newly promoted side on Sunday.
United had established a 3-1 lead in the fixture, but they surrendered it as Leicester came from behind to mount a quite incredible comeback.
It was a defeat which has led to further questions being asked of a United side, who have started to the season in dismal form.
Under van Gaal, the team were expected to be rejuvenated, but they have failed to live up to the hype so far and there are a number of concerns that need answering.
Although United unquestionably pose a greater goal threat now, their defence is still weak - especially at centre-back - and it does appear that Gullit could be right in suggesting that his compatriot has not eradicated the existing problems at Old Trafford.
United did bring in Luke Shaw, Marcos Rojo and Daley Blind to solidify their defence, but the lack of a commanding centre-back in the squad is threatening to hurt their top four chances.
Van Gaal failed in his reported chase of Mehdi Benatia and Mats Hummels this summer and he may be forced to act in January to rectify a problem which is showing no signs of being solved.