Since Arsene Wenger joined Arsenal almost 18 years ago he's done what no other manager could ever do with the football club.
When he arrived at the Gunners no one knew what to expect from him as he was unknown in English football. Between the years of 1997 and 2004 he won over 13 trophies with Arsenal and played an important role in tying up a deal with Emirates for the new stadium.
He is also the only manager in history of English football to win the country's top division unbeaten. In short he revolutionised English football. He was the first manager to scout for talent abroad and he insisted on a passing-based game and always wanted the perfect goal. He saw Arsenal as a club that developed footballers rather than those clubs that spent millions on players.
Since the 2004-05 season though Arsenal haven't finished in the top two and, following the departures of a lot of stars, this raised speculation as to whether Wenger's future was secure with the club. He ended up signing a new contract and after that year it's been the same story for Arsenal until now.
Since then, at the start of every season, a lot has been promised by the manager but they have never delivered. Their main problems have been their defense and the fact that every player that they produce ends up leaving.
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In 2011 Arsenal sold two main stars in Francesc Fabregas and Samir Nasri and then went on to lose 8-2 to Manchester United shortly after. They still did not buy any new 'major star'. The next year, following the departure Robin van Persie, they purchased Olivier Giroud, Lukas Podolski and Santi Cazorla.
Two years later they bought Mesut Ozil for a club record fee of £42 million and they won the FA Cup. Coming into the 2014-15 season they bought a host of player's - most notably Alexis Sanchez. Everyone expected Arsenal to have a very strong season as this was the first time the club had a fully prepared squad before the campaign started.
Despite all the preparations though, like every other season they are struggling, barely winning matches, have defensive problems and a lot of their players are out injured.
This season it has almost become easy to predict the players Arsenal are going to field and how they are going to play. The Gunners struggle to score in every game and its like Wenger is running out of ideas. He tells his players the same tactics and it shows in every match.
Arsenal have to re-vamp their whole coaching staff. If you look at the team, it's actually one of the best on paper. This suggests that the problem is the back-room staff. Arsenal need to let Wenger go or he needs to realise on his own that his ideas aren't working anymore.
Every year the fans expect so much but all they get is a fourth place finish and reach the round of 16 in the Champions League. Wenger has done so much for the club but now it's time for him to leave; he needs a new challenge and Arsenal need a new leader.