It seems that we need a core group of players (significantly lallana, coutinho, hendo, mane...etc) to make this 4-3-3 formation to really work
So if a player or 2 from this core group is missing...perhaps Klopp has to tweak his tactics to suit the players we have now ? Cos Shifting firmino wide, moving lallana away from the 3 man midfield does not seem to work.