Stewart Robson has described Arsenal manager Arsene Wenger as a tyrant who does not allow his members of staff or his players to have their own opinions, suggesting the running of the club will never change as long as the Frenchman is in charge.According to recent reports, chief executive Ivan Gazidis and the rest of the Gunners hierarchy are keen to make sweeping changes to the way the north London club is run this summer, after another season of disappointment.It is claimed they want to appoint a director of football to help Arsenal get back to challenging for titles, but that move has set a collision course with Wenger.The 67-year-old, whose future at Arsenal is still uncertain, has insisted he will never work with a director of football as long as he is manager at the club.Speaking about Wenger’s statement, former Gunners star Robson told the Alan Brazil Sports Breakfast: “You’re not surprised are you? Arsene Wenger runs the football club!“The manager should run the technical side, but the problem is that Wenger doesn’t let anyone have a say.“The coaches below him aren’t allowed to have an opinion, unless it’s the same opinion as Wenger, so there’s no one giving him any advice, there’s no one that might question him.“That’s the problem. Every manager, coach and player needs to be questioned at some point and given another point of view, but Wenger won’t allow that because if anybody had a different opinion to his, they won’t be at the club for very long.”Robson has spoken out against Wenger’s leadership of the club throughout the past decade but has now slammed the Frenchman’s training techniques, saying his lack of technical work is to blame for the club’s failure to land a Premier League title over the last 13 years.Arsenal recently reverted to a three-man defence, in the mould of Premier League champions-elect Chelsea, to some degree of success – beating Middlesbrough and Manchester United in the Premier League and Manchester City in the FA Cup semi-finals.But Robson suggested it was more of a fluke rather than a management masterstroke, insisting it was unlikely the players were meticulously briefed by Wenger about their roles in the new system.He added: “I don’t think anybody is able to persuade Arsene Wenger [to change the formation]. I think he realised he had to do something and he went to a back three because lots of teams are doing it at the moment.“He threw it together and it worked ok for a couple of games, but there were still a lot of problems with it, I don’t think it was something they worked on in training day-in, day-out to make sure they got it right.“I think he just went to the players and said, ‘we’re going to play three at the back, now get on with it’. That’s how he manages, he lets the players have their heads, allows them to have their freedom without any defensive organisation. That’s been the problem for years.“We all know how it works, that if something goes wrong you work at it on the training field, but I’m seeing the same mistakes happen at Arsenal that I saw ten years ago.“I know one or two coaches who have worked under Wenger at Arsenal, and they say no tactical work takes place. The players I know say no tactical work takes place.“Arsene Wenger is almost more like a sports scientist and dietitian rather than a coach.“When I talk to old players, I ask if Wenger taught them anything about the game and they say, ‘not really but he’s a great sports scientist and dietitian’.“That’s not being a coach! That’s why Arsenal have had their problems, that’s why they haven’t won the Premier League for quite some while, because the technical work – which Wenger has insisted is all down to him – isn’t good enough.”Listen to talkSPORT’s interview with Stewart Robson IN FULL above!