Apart from cohesiveness, Arsenal also has a strong mentality this season they continue to build it in every match, now is Arsenal the main candidate for the title? I know it's too early to say but what we saw in the last 4 games is proof that Arsenal are starting to gain consistency
Quite rightly, and after 4 games who can say they aren't title contenders, i for one wouldn't have said that at the start of the season, but c'mon, they are top of the league after four games, so they can be called title contenders at this stage, maybe as the season goes on into its later stages and they start to drop points often and fall off the top spot(s), then you could prolly said they aren't title contenders, or champion material, but for now, they are.
Having said that, Arteta and his boys have a lot of work to do to maintain their consistency, and to further work on their mentality if they are to challenge City this season, that isn't an easy thing at all to do, City are comfortably EPL champions on anyday, thus if they are to reliquish their title to anybody, that team must be a consistency monster all through out the season.