[seanmcdirmid]

The post is a bit misleading about PS monkeys. There are actually jobs out their that specialize in image production (e.g. Doing lots of red lining); or even producing grid layouts. Production really isn't design, but often junior visual designers are tasked with doing it (or even senior ones...because someone has to do it). Large organizations will hire people specifically for these roles who aren't really designers.

Interaction and visual design roles are separated not because the division is natural, but because visual and interaction design require specific skills that are rare to find both in individuals, especially on the visual side (interaction designers have diverse backgrounds, while visual designers require specific training).