He just cant perform on the highest level for top 5 english club, as i said, i've been constantly following him since his arrival.
He doesn't look like a natural deep lying playmaker, i mean he has that left foot, some really nice and sharp long balls, no many better long passers around, but every single aspect of a deep lying distributor is average or below that.
First of all his awareness is bad. When he recieves the ball, he doesn't seem like a player who has clear idea what is the next step and what to do, many times he's getting warned by his fans, sometimes he panics and that lead to wrong pass.
He's very very unagile, so that's making the things even worse, he's not able to just fastly turn and twist like smaller players on that position.
So, he's double slow, not just unagile and stiff, but also not the greatest mind in football and fast thinker.
His low intelligence is also very obvious in defending, he's kinda rushy (is that even a word) and flies into tackles all over the place, making stupid fouls.
He has serious problems with pressure, and he's not the kind of player u'd want under it, he just cannot cope with high tempo. His limits were so obvious every single time in those situations, today his wrong pass under pressure lead to Leicesters second goal.
His first assist was a joke today, a slow lofted pass for Ramsey who was ummarked for way too long. That wouldn't work against proper defence. His corner though was solid.
This guy is going to be a big problem for Arsenal in tougher matches i am sure. He's not what they need there.