Hmmm, I haven't done it myself...but im thinking working with some ppl probably soon someday. I can draw but my skills aint up to par of a professional level yet. But im getting there. I would say that is a good way to start tho. When I was looking into game designing. They usually do have a team of people to do a specific tasked. Whether it's a team of 5 or team of 100. They are grouped for certain tasks.
If I was to work with a team I would have done it the way you used it in your post as well.