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Wenger has been instrumental in the development of the club and no doubt they are big shoes to fill. Off the pitch, Wenger cannot do any worse as he's running a successful club. He may have a few years left in him but there's no denying it would be an attractive prospect for any manager.
Any replacement would have to improve on the areas that Wenger does not always gets right. The tactics and squad choices have left many head scratched this season as well as his unwavering faith in players who don't perform.
They would also have to bring in that winning mentality and also be willing to bring in new faces where needed. Fans have been begging for a new goalie since Lehmann was still at the club, the first time and he's only brought in Fabianski who had only played well this season, after some major mistakes only for Szczesny to be even better.
Wenger's stubbornness has cost the club over the years and it's always the same problems that occur which are never fixed. Leaky defense? Dodgy goalie? World Class Striker? Defensive midfielder? Playmaker? Someone who isn't injury prone? All things we've been wanting for years and while they may have in part been dealt with, there's still a few of them left, we really need.
Wenger also refuses to spend big on established quality and likes his unknowns. They are a gamble, Koscielny and Squillaci were liabilities and cost us valuable points. Chamakh is a good player and was something special until he was dropped from the squad and has taken a few months to find some form again. They all can't be Sagna's but we need someone ready from day one of the season.
Of course silverware would be a massive target, it has seemingly eluded Wenger for so many seasons, that we simply cannot rely on the memories of the "invincibles" any longer. Honestly, silverware would win many fans over and a financially stable club doesn't quite pack the same punch as being the Champions of England or Europe.
The team isn't far away, after doing so well up until March, it's certainly a team that doesn't need wholesale changes. Freedom to purchase world class players but also have the options of many talented ones as well as an excellent base to build around.
Obviously, it all depends on what Wenger does next season, I can't imagine the boos will stop and the pressure is mounting. He may never be fired and may be stubborn enough to want go out with at least one more piece of silverware but until then we can only have faith in him to not repeat mistakes.