Oxlade-Chamberlain joined Arsenal in 2011 from Southampton following his breakthrough season where he helped Southampton to promotion from League One with 9 league goals to his name and a place on the League One Team of the Year. As an 18-year old he quickly impressed all of us in his debut season where you might remember his Champions League debut goal vs. Olympiacos and a storming performance against AC Milan at the Emirates where we won 3-0. You might also remember a certain dutchman's reaction to the substitution of Oxlade-Chamberlain in a league game vs. United where he was a constant threat and also made the assist for our only goal in the game.
Unfortunately his debut season remains his most exciting season for us so far as the following seasons have been so-so (horror display in the 0-6 loss to Chelsea springs to mind) and especially the last two seasons have been wrecked by injuries but there have been glimpses of serious quality like this:

Even with the last two seasons in mind the majority of Arsenal fans still believe that Chamberlain will become a key player for us in the future. People on even here even insisted that he was better than Sterling. He has fantastic pace, can dribble and his shooting technique is definitely up there with the best at the club. On the other hand he is terribly inconsistent and his mistakes have already cost us a number of goals this season (3 if I remember correctly) and he can sometimes play like Eboue where he just runs the ball into no-mans land.
Bear in mind that he is still only 22 but it's hard not to be worried with his lack of development since coming to the club in 2011. This season is supposed to be his breakthrough because he no longer has fitness issues but so far he's been among one of our worst players.
So what do you guys think?
Were we too quick to hype his talent and will he never be anything more than an impact player of the bench (a Sanogo-esque influx of chaos)?
Or do you think that he still has what it takes to iron out the flaws in his game and become a household name in the starting eleven?
What is going on with him? Surely a player of his talent should do more?