3. Find Laurent Koscielny a reliable defensive partner – As with signing a striker, this has been said before, too many times. Arsenals options in central defence are frighteningly weak. Laurent Koscielny might be one of the better defenders in the Premier League, but those who stand beside him at his club arent so. Would Per Mertesacker or Gabriel get into one of the mid-table sides in Englands top flight? Probably not. The Gunners coaching staff seems to put a players technique and ability on the ball ahead of other characteristics, such as leadership, and this has to change. 5 2. Sort out their centre forward issue – Its getting boring to say this now, but Arsenal really do need a proven centre forward leading their line. Zlatan Ibrahimovic is out of contract in the summer, so why not bring him in? Yes, hed upset everyone, he might demand huge wages, but arrogance in the side is exactly what the Gunners need. Its almost impossible to think that such a player would be offered a deal by Wenger, and this is everything wrong with their transfer policy. Neither Olivier Giroud, Danny Welbeck or Theo Walcott will fire the club to glory. 5 5 5 5 1. Address their mentality – check out four more things Arsenal must do to challenge for the title next season by clicking the arrow above, right – Alexis Sanchez and Mesut Ozil have won various honours for club and country, but since arriving at the Emirates, their winning mentality has diminished. And this is no coincidence. The negative feeling in and around the Gunners camp is contagious. There is absolutely no character among the Arsenal players. A lot of that is down to the fact that, besides perhaps Petr Cech (who, remember, arrived only last summer), there are no leaders in the team, with few willing to step up when it matters. Leicester City’s 4-0 win over Swansea City last weekend confirmed Arsenal’s failure in challenging for the Premier League title.Only Tottenham Hotspur are mathematically in with a chance of pipping the Foxes to glory, in what has been yet another campaign of immense frustration for the Emirates faithful.WHY ARSENAL, NOT TOTTENHAM, ARE THE REAL PREMIER LEAGUE TITLE BOTTLERSThe Gunners sat top of the table from from December 28 until January 24, leaving many pondering whether this season could really be theirs.Predictably, though, Arsene Wenger’s side, despite being the only club to do the double over Leicester, bottled it.So, taking this on board, talkSPORT has examined five things Arsenal must do over the summer to really challenge for the title next season – check it out by viewing the slideshow above. 4. Confirm Arsène Wenger’s future, is he leaving at the end of next season? – Whether the clubs supporters like it or not, their club’s French manager is staying put until at least the end of his contract, which expires in the summer of 2017. Disgruntled fans spending thousands to watch their team each week deserve to know the situation and shouldnt be kept in the dark over his future. So whether he is leaving next summer or extending his stay, make it public. 5. Leave the banners at home – it’s embarrassing – On this note, give it a rest with the protesting, its embarrassing. Few would disagree that a change in management is needed at Arsenal but the fact is Arsène Wenger isnt getting sacked. So get over it. The players job of challenging for the title is made even more difficult than it need be through the negative atmosphere from their so-called support. It is frustrating to constantly fall behind in the Premier League and the Champions League, but such attitude isnt helping. And criticism is falling on deaf ears, anyway.