Chelsea has to work on their defence line and how to coordinate them, assuming they played against Arsenal or Liverpool and they scored an early goal as Tottenham, I don't think they can make a way out due to their current performance. I'm happy for their victory because they are able to make a different against arsenal that were competing with them. At least they are two points away from arsenal which they can maintain.
The comeback victory over Tottenham in yesterday's match was very surprising to me, because previously I thought they would get their third defeat this season at spurs home, especially I saw so far their mentality when facing big teams was not very good, but in fact their performance in the match was extraordinary in my opinion and it looks like they do have great potential this season to compete as title contenders,although indeed consistency in defence is their main problem at this time, but I think their goal productivity from attack line can still cover that problem at this time.