Arsenal's season as good as over before the half way mark?

The picture says it all. In only 13 premier league games played so far. Arsenal have already lost 4. Their number 4 lost was inflited at home yesterday by Aston Villa with the scoreline 0-2. Their previous 3 loses were to Fulham, Hull and Stoke City. I cannot help it but to admit that the premier league crown will not be Arsenal's this season and looking at the performance and trend so far, they might not even made it to the top 6 come May next year. Why are they so inconsistent this season??? One week they performed so good but the next week they were shot back down to earth...speechless!