The Camp Nou club has enjoyed a sustained period of domestic and European success, while Los Blancos have struggled with consistency.
Barcelona has a stronger football philosophy than Real Madrid, according to former Blancos president Ramon Calderon.
Calderon believes the Catalans have stuck with a common playing identity since Johan Cruyff's tenure as coach between 1988 and 1996, while their rival has suffered from making too many coaching changes.
Calderon says that if a change in approach is not implemented in the near future, Real risks being blown away by Barca, which claimed a domestic and European treble last season and handed Madrid a 4-0 thumping in the capital in November.