5) Luis Suarez struggles, Ousmane Dembele has work to do
With Neymar out of the picture, the focus is back solely on Messi to get Barcelona going. He has been moved to the centre, allowing him to make a bigger impact and get his sights on goal a lot quicker.
But this has shifted Luis Suarez to the left and he seems to be struggling to get among the goals now. On the odd occasion he tried to use pace, he was easily beaten while his passing and first touch seemed to suffer in this game.
Save for the quick shot on goal that produced a fine save from Buffon and the assist for Messi's first goal, Suarez cut a frustrated figure for Barcelona. It was also topped off by a well-constructed goal that was ruled out for offside during the build-up.
On the other flank, Ousmane Dembele did well to run at the defence and get into dangerous positions. But his decision-making is still not up to the mark and he lost the ball in the final third more times than Valverde would have liked.
It's still early days for the youngster and the €105m price tag may be weighing him down. What he needs is a consistent run of games and the manager to inspire some confidence in the 20-year-old to mesh with his teammates and make the right pass.