Manchester United were unprepared to deal in the transfer market and would benefit from having a director of football, according to Damien Comolli.
The former Tottenham Hotspur and Liverpool director of football believes that United's troubles in the transfer market stemmed from having both a new manager, David Moyes, and a new chief executive in Ed Woodward.
Despite the high-profile signing of Marouane Fellaini for £27.5million on deadline day, the club missed out on a range of other targets throughout the summer.
"If there's a club who needs a director of football it's United," Comolli told BBC Radio 5Live.
"It would ease the process for both individuals."
These came in addition to earlier failure's to sign Cesc Fabregas from Barcelona earlier in the summer or pick up Thiago Alacantara when he left the Catalan giants.
And Comolli put these failure's down to the fact that Moyes and Woodward were both new in their roles after the departures in the summer of Sir Alex Ferguson and former chief executive, David Gill.
"David [Moyes] only joined on 1 July which was quite late," he said.
"The issue for Manchester United is that the two most important people at the club in Sir Alex and David Gill left their positions and new people came in for their first transfer window.
"For some reason the club weren't prepared or they didn't think it would be that difficult and they ended up in a difficult situation."
The role of director of football is a common feature in Europe but has often been viewed unfavourable in England - although it is becoming more common.
Commolli himself was director of football at Spurs from 2005-08, signing players including Gareth Bale, Benoit Assou-Ekotto and Heurelho Gomes before being sacked.
He then assisted Liverpool with the signings of Luiz Suarez, Andy Carrol and Stewart Downing whilst in the role at Anfield between 2010 and 2012.
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