Guardiola left and after that they had to change their menager again you know. But They will be back in their form I guess. It's similar to ManU but not that bad :D They have real Top class players so they'll get better .
Anyway In my opinion this year Real Madrid will win the league.
I dont watch much of Barcelona but they dont seem the same team like 2-3 years ago when they won the champions league easily . Last year they got blitzed 7-0 by Bayern Munich and are slowly slipping away from the top in La liga after losing 3-1 to Real sociedad and 1-0 To valladolid. I still rate Barcelona in the top 5 teams in the world right now but this is one of the worst Barcelona's in recent years. Messi does not look like the same player 3 years ago and Xavi and Iniesta are ageing and are losing their touch.