To be a great volleyball player, you have to have both a very good technique and strength....if you have only power you can still do a good job like (calderon) but if you have a very good technique and lacks power (like Saori)...its hard for you to be the leader of a team like VB in Europe.But Vb has Brako,Polen and Nikolic this allows Saori to stay in VB otherwise,its impossible!!
It is unfair to say calderon only has power, she also has technique, she knows how to use her power, but just because her technique is overwhelmed by her power.