Will the Full-Service Agency Model Survive?

In a recent interview with Advertiser Perceptions, an organization that provides data-driven intelligence to marketers, I was asked, "Will the full-service agency model survive?"  As part of their survey, I was shown the results of how advertisers had thus far answered the question.  It was pretty close between those that said yes (42%) and those that said no (32%).  Twenty-six percent were not sure.  My response, in this article, follows.