The luck that Liverpool have is that they have already established a very good lead on the Premier League table so losing at this point is something that is going to be very difficult and impossible. Even if they don't do well, they will keep heading to win the trophy even if they draw games. This remaining side of the season should be a time for the Arsenal coach to plan for next season because his team definitely needs a lot of squad depths to be able to compete to win the Premier League. And the longer he stays without being able to win the Premier League the harder for him and the slimmer the chances for him to keep his job.
Liverpool had a very good chance from the start of the season and they were able to actually make use of it to their advantage and that is what has given them the edge over all other teams and been situated more for the premier league title than any other club in the premier league now. All other clubs behind them may already by now feeling they won’t catch up again and will only be fighting for position on the top four of the table. Liverpool don’t look like who will give up on this race for the top title as they are just few steps away to been crowned the champions of premier league this season.
Indeed Liverpool worked hard to win 22 matches and be defeated only once. At the same time, the luck was here to not have a serious opponent this season because Manchester City faded this year and gunners lost a lot of points easily. Chelsea too wasn't consistent and withdrew from the race fast.
Chelsea was also in top race for the league title but unfortunately they faded quickly, there was no consistency in the game and had to fall out from the title race very early when other teams like Arsenal were still fighting in the race vigorously together with Liverpool. Liverpool had the best of chance and they made use of it well to their advantage and now they got the top lead. Manchester City have no capacity for the league title this season neither and that leaves Liverpool on the best position for the league title.