Brad Jones isn't the answer in goal
That's not to say that the Australian was poor, but he could've done much better with Olivier Giroud's goal to put Arsenal in front. He was hit and miss coming for crosses, and with Simon Mignolet on the sidelines, it's becoming even more clear that Brendan Rodgers must sign a new goalkeeper in January.
Mamadou Sakho needs to start regularly
Rodgers has used a number of centre back combinations this season, but their best defender was given a chance to shine today - and he took it. French international Sakho was superb, shackling Alexis Sanchez and playing the ball out from the back well. In a season where Sakho has been on the periphery, this was a display to show Rodgers who should be his first choice central defender.
The new system works...kind of
Brendan Rodgers once again went with the 3-4-3 system, and it showed some signs of promise today. Some tweaks are needed though, with a right sided centre back comfortable with the ball at his feet needed, as well as natural wing backs and a true centre forward, allowing Sterling to drop in behind along with Coutinho or Lallana.
The pressing is back
For too long this season, Liverpool have been passive in closing teams down, which is a million miles away from what they did last season. Today, we saw hunting in packs and the intense pressure again, which resulted in Liverpool dominating the first half. This needs to stay to get the Reds playing like they did last season.
Steven Gerrard continues to struggle
Gerrard has been a fixture of Liverpool's side for many, many years, but the end is in sight. Today, Gerrard was guilty of trying to spray Hollywood pass after Hollywood pass, and a misplaced one actually led to Arsenal's second goal. It's time for Rodgers to either put Jordan Henderson back in to central midfield or give Emre Can a run in the side.