Barcelona are inform more than real Madrid infact Barcelona are the most informed Spanish team as we speak, they gave won all their games this year , we saw how they thrashed Sevilla in their last match, and see currently 8points clear of real Madrid who list their last match against real Mallorca, Barcelona have face the likes of Real Madrid in the Spanish super cup in the final and win them, even win athletico Madrid before the real Madrid match, so Barcelona are the best Spanish team as it stands and if they continue with this form they will surely win the league title for the first time in 3 years.
Yes, Barcelona performance has showed that they have what it takes to embrace this season title, because their coach has introduced some new skills that is helping the team to achieved victory in any competition. I think, Barcelona will definitely break the record this season to win this la Liga league title, because they have defeated so many strong teams and they have moved to first position in the la Liga league title which are part of the advantage that will make them to remain on top till the final battle. I don't think, Real Madrid will make it this season to embrace the la Liga league title, because their performance is seriously reducing which their coach need to apply some skills that will help them to improve.
I think it has a lot to do with getting some brand new players integrated into the squad. Barcelona was playing like a fully squeezed lemon with all those oldies running around. They just have had enough, players like Pique. Gavi, Torres, Raphael and even Lewandowski brought in immense new motivation. That is one major reason why they are now again performing on another level. I think it is difficult to tell how much of a contribution Xavi is actually responsible for. He is most likely very good at communicating effectively. In the beginning I thought he might not make it, but he solved problems and got things under control.