I like this idea of collective, less-organized entities. I worked at a design agency for 3 years and found that every designer who came immediately started designing outside of their process. I think a system like this allows each individual designer the ability to implement their own process and creativity without management influence.

I would urge you to take this to the next step and unify accounting. This would allow customers to feel as if they were hiring a traditional firm, and would relish in the idea of being able to select out of 444 designers and then work directly with them.