Ditch the writer/AD partnership for the generalist/specialist one?

Interesting post on the STRUCK agency blog today. The author thinks that pairing creative generalists (big idea, broad thinkers) with creative specialists (the deep divers, experts at their craft) is better than the traditional AD/CW pairing. I’m intrigued, but not 100% convinced. But I love the idea of putting more thought into partnerships and trying to understand what makes the best ones work. We need more of this type of self-analysis. What do you think?