Their defence never seems to be able to do its job

Arsenal are known for being soft both at the back and throughout the whole side.

No matter how many goals they let in or how many times their defence gets passed by like it was not there, Wenger does not seem to be able to take steps to rectify it.

A good title challenge is not only built on goals but also a brilliant defence and until Arsenal get theirs, a title is only a dream.