Former Manchester United captain Gary Neville has launched an attack on the club's board, urging for a more modern structure to be implemented.
Neville's comments come in light of the alleged power struggle at Old Trafford between manager Jose Mourinho and chief executive Ed Woodward this summer.
Mourinho was reportedly left frustrated by Woodward's stalling in the transfer market, as he refused to bring in the desired defensive reinforcements that were on the United manager's wishlist, and Neville believes that the fallout between the two should spark the need for an overhaul of the system in place at Old Trafford.
"Football's changed. Gone are the days of chairman and manager. There are heads of recruitment, sporting directors, a series of people who are serious people in football clubs now," Neville told Sky Sports News.
"The best operating football clubs in the world - Bayern Munich and Manchester City are, unfortunately, in that bracket now - their operating structure is fantastic and their people are fantastic. Manchester United now have to do the same.
"They (United) need serious football people to guide the club. What Manchester United have been doing over the past five years is bouncing from one strategy to the other. The way United are trying to operate now, which is to spend serious money every year, £200m a season, £150m a season, you need serious people that you can trust to spend that money for you. You're now in a mode of modern football so adopt a modern structure."
The Red Devils have not won the Premier League since Sir Alex Ferguson retired in 2013, their longest spell without a top division title since 1993.
