Multi-lingual Worker, B's,
I really like this idea of multi-lingual to describe adaptability. As in, with language strictly, one who speaks Spanish and English can travel in more groups and spread more ideas than someone who only speaks one language. And someone who speaks three languages can more than two.
Same goes for an agency. If one person only speaks design, but doesn't understand technology or doesn't have interest in strategy, anthropology, whatever, then it not only limits his or her potential, but the ability to impact the thinking of those that also have an effect on the end product. It measures their influence by stifling collaboration.