The club has everything to thank for to Johan Cruyff. I don't see much of Cruyff in Laportas and Xavis run so far, unfortunately. I'll give them to the WC to see if things shape up. They should really satisfy the Bartomeu and Rosell supporters so far though, Laporta brings all the hyped up names.
As for the lineup - yes the RB is a big problem. If Araujo is to play there, then opponents should really focus their pressing there. Cruyff used to say something like "you should let the opponents worst player play badly", to strike where the opponent is weak as Sun Tzu would say, and if Barcelona are to build up from the back, and they have very good ball playing central defenders, then it is all to nothing if the opponent can force the ball out to Araujo on the right and put pressure on him. I don't think it will work out very well for Barcelona with this defence, even though Araujo has so far mostly solved the situations by playing very simply, knowing his limitations.