I feel sure I speak for most ex-Arsenal players of recent years when I say my time at the club was fantastic. It was a period when I grew as a man and was fortunate enough to be surrounded by some of the finest footballers in the world. Being part of that environment continuously inspired me to maximise my potential.

That motivation, and the success that came from it, was down to the ethos of one man – Arsène Wenger. As I look on at Arsenal's resurgence – which took a small hit at Queens Park Rangers last week – it is he who I feel most happy for. He has once again proved himself to be a top-class manager who will almost certainly be leading my old club into yet another Champions League campaign, this time having overcome difficult circumstances. But, watching on, concern remains regarding what is going to happen to him and the club in the future.

Next season is going to be Arsène's most important at Arsenal since he joined in 1996; a make-or-break campaign as the fans will not be appeased by another year in which a trophy is not won and all they have to fall back on is Champions League qualification.

Not that the club's hierarchy see it that way – for them making the Champions League every year appears to be enough, probably because it masks the internal power struggle that has been going on behind the scenes ever since David Dein left the club in 2007. That Alisher Usmanov still has no seat on the board despite being the club's second-largest shareholder is interesting to say the least and is surely a situation that cannot be good for the long-term health of Arsenal.

Such a power struggle certainly cannot help Arsène, who I am certain wants to bring in a number of big-name players in the summer, the type of guys – such as Lukas Podolski – who are at the right age to make an instant impact.

Experienced internationals are what Arsenal need and it is strange Arsène has not signed more given he has seen the difference they can make. He inherited a squad full of such players; guys who were skilful but also tough and resilient, prepared to put their bodies on the line and wouldn't think twice about doing it again. They were the foundations of the success Arsène has had at Arsenal.

That is not to say he was not good for them either. Arsène rejuvenated the squad he inherited, with his philosophy and methods allowing the club's famous back-six of that era – David Seaman, Lee Dixon, Tony Adams, Steve Bould, Martin Keown and Nigel Winterburn – to play on for longer and enjoy more success than they could have ever imagined.

Much of Arsène's work has been done behind the scenes, implementing rules that have altered the mindset of every player who has worked under him. Little things like having to take your boots off before entering certain areas of the training ground to prevent the spreading of dirt – a trait he picked up during his time in Japan – introduced a level of professionalism and dedication to detail not seen at Arsenal. Another thing he has always been big on is diet, with every member of the squad made to follow a strict, low-carb intake during and before each season. Unusually, he does allow the players to have a sweet after every meal with the rice pudding that was served at home and away games a personal favourite.

Arsène has not lost that focus on how the club should be run and should Arsenal go on to win a trophy next season, I can see him staying for another 10 years at least.

For that to happen, though, Arsène not only needs to rejuvenate his squad this summer but also his backroom staff. All the best managers surround themselves with high-quality coaches and while Arsène has that in Pat Rice and Boro Primorac, it would not hinder him to add a fresh face, ideally one who understands and appreciates his methods and could reinforce them on the training ground.

And who could do this better than a former player of his? I rule myself out as a contender for now and instead look to Patrick Vieira and Dennis Bergkamp, both of whom I know would love to be offered such a role and, who knows, could replace Arsène whenever he does quit as manager and, ideally, takes up a role upstairs.

Sadly, I cannot see this happening. Arsène is a single-minded leader who does not like to have anyone around who could threaten his authority, either by challenging his decisions or by being the person that will eventually take his job. But hopefully he proves me wrong and makes such an appointment.

Arsène faces some big decisions in the coming months, ones likely to decide his long-term future at Arsenal. He used to tell us not to waste a second in training or on the pitch striving to be the best – now it is time for him to follow that same message.

Sol Campbell has donated his fee for this column to Kids Go Live, a foundation created by the former defender that aims to encourage children from inner-city primary schools to take up sport by taking them to live sporting events