The problem of Arsenal is lack of consistency they always start the league very well sometimes they will be the ones topping the league and before you know it they will start losing form and then drop to second in the league table and then remain there till the end of the season, well Arsenal didn't have good striker that will be giving them goals this was also a big problem to them, they needed someone that will be creating chances and scoring goals, Arsenal are good they play very well, and I believe they can lift the league.
Well, here it is. Arsenal's problems are indeed better at the beginning, compared to the middle to the end of the season. That's why they've often been called "almost winners." Yes, because they've led the Premier League for so long, only to drop to second or third place at the end of the season. Arteta must be able to anticipate this recurring pattern throughout his Arsenal career from the start. They're not bad, they're good, but that's not enough to become champions of a very tough and competitive EPL.
We have all known the problem of Arsenal, but the problem now is how to solve it. Some people says that Arsenal's problem is consistency but I think that is not correct. Arsenal has been the most consistent team in England for the past 4 or 5 seasons. Yes, I said so because Manchester city flopped this season and yet Arsenal was still consistent and I bet you that they will remain consistent this season also.
The problem of Arsenal is rather perseverance(I can't think of any other adjective). These guys will do well from the beginning upto to the eleventh hour and they will fail to achieve their goal. They just need a different kind of ideology and their head coach needs to try something else or Arsenal should just look for another coach.