There was an incident when koscielny first came back from injury that i think summed up why we need to offload more Wenger players. I can't remember if i posted it at the time but it made me think about our attitude.
Earlier in the season, we had been squaring up to opponents, arguing with refs and generally being arseholes like in the good old days.
On this occasion, Sokratis had been getting really lairy and Koscielny got him to calm down. It looked like hexwas saying something like 'it doesn't matter, why are you so angry'. The rest of the game sokratis wasn't his normal aggressive self.
I think koscielny's return saw some of the wenger mentality return. Him and ozil would be the first two out of the door. They are both too 'nice' on the pitch and sum up wengers mentality.