Lewandowski has admitted that he has slow start this season because if we compared to his goal records last season is much better than now and even his goals records with Poland national team is much better than in Barcelona and Lewandowski has been complaining Xavi tactic while Barcelona only playing draw against Getafe last month this because he hasn't gets enough ball supply from the midfielder so that's why he was unable to scores at that time but i think it's only a matter of time to see Lewandowski reach to his top performance again because gradually he has found his shape again and the latest proof is he was able to scores two times in a row when Barcelona win from Osasuna and Villarreal
Xavi has implemented the best strategy for every opponent they face. but if the opponent has a good strategy to cut off Barca's attack ball in their midfield and not let Lewandowsky and Barca's attack line get enough ball then that is the difficulty Barca is experiencing.
Barca have a possession game with a strong midfield, what they need is to find a gap for the attack line to get a chance and immediately send the ball forward. Lewandowsky must catch up with them by scoring more goals. that will help Barca, and the connection with the midfield must continue to be developed.
Barcelona are strong in midfield and forward line but their defense is not that strong. No matter how much Xavi plans, his plans will not work if the defense line does not perform well. In every match that Barcelona have played so far in La Liga, we have noticed the extreme weakness of Barcelona's defense, especially the three goals that Barcelona conceded against Villarreal were completely due to the failure of Barcelona's defense. If the defense is bad against the relatively small teams, then against the big teams, the Barcelona defense will not care. At the moment, Barcelona's defense should be given the most importance. Because it is difficult to score full points if the defense is not strong.