I don't think that this season would be like last season for Arsenal, because they have the quality to keep on winning their matches and finish on first position on the table. I believe that Arteta have learnt from last season, and he is very cautious of himself now to prevent last season from repeating itself again.
Without being told, Arteta has learned his lesson from missing the PL title last season when he had the opportunity to. This season, I think Arteta is coaching at his very best to make sure the Arsenal team wins the Premier League title this season. The mistake of losing the PL trophy again to Manchester City will not be forgotten in a hurry if it happens. I believe that Arteta will break Arsenal's long years of no trophies and he will have long years of being their head coach.
Assuming it is City that is on top, I don't think that any club can take it from them.
That's what Arsenal or Liverpool shouldn't allow to happen because if it does, they should forget the Premier League trophy for the season
Liverpool and Arsenal should match up by becoming formidable to win the rest of their PL match than let the Premier League title to be won by a particular club every season.