Barca era over?

Before you think am just another Barca hater lemme tell you that am not (though am smirking) because I enjoy good football and they are the epitome of that. Last night they drew against a Chelsea side that they have not defeated in their last six games, in the weekend's el Classico they lost home to Real Mardid something I didn't see coming (maybe I should).

For three seasons now they have totally dominated European football. Their youth system has been superb along with their great coach, Pep Guardiola. So when a squad that has been constantly winning trophies is threatened by the prospect of a barren European season there should be cause for concern. To me Pep has been quite cocky this season especially in the league testing/using a 3-4-3 formation often that is yet to convince. Also putting a player of Pedro's quality on the bench and preferring youth talent Tello. Against Madrid if Pedro had started maybe the league chase would have still been on and also against Chelsea last night surely he would have done more than Isaac Cuenca.

Am I being too quick to judge? Maybe Madrid's squad depth is evident and Chelsea are having all the luck in the world? Messi is human also so is Iniesta and could be suffering from fatigue. Please share your ideas.