Success on a national basis. Guardiola never managed to win a CL away from Barcelona. His style is great for championships but not for knock-out ties. He is a great coach, I rate him highly. Valverde was winning championships too, but people were not happy with our recent CL-record. Guardiola isn't the solution either.
Yes, Guardiola did win the CL with Barcelona twice, but this was a different team with players who dominated in every competition if you look at the success of Spain during the prime time of Puyol, Piqué, Busquets, Xavi and Iniesta.