The season is still young to want to predict who wins the EPL title. I understand that Arsenal’s consecutive defeats against West Ham and Fulham, might have made people think that Arsenal have lose ground in the title race. But with 18 games to play there's still time to rectify the situation. Most people are now tipping Liverpool and Manchester city to win the title, because they have experienced managers, game changers, world class players and they’re the only teams to have won it in recent times.
I think that’s what differentiates Arsenal from them. But I think if Arteta can get one or two top attacking players this January, they can get themselves back to the campaign. I think the signing of a regular goalscorer could well be the difference between Arsenal winning the Premier League and falling just short for the second successive season.
I think the decline in a team's performance in the last few matches as experienced by Arsenal is quite normal and even Manchester City have experienced something like that in the previous few weeks until finally they were able to get up and get back on track, as did Arsenal at the time. This, I think Arsenal has everything and they have strength and what happened is normal in football and I'm pretty sure they will recover soon and be back competing for the title.
This season's journey is still quite long and several teams still have the same chance of winning the Premier League title this season, not just Liverpool and Manchester City.