Well CGI could work on different area and his knowledge on the graphical aspect be not much better than ours. Like being a programmer, level designer, etc. But from what he post on the dedicated threads he works on doing models, assets and other stuff that is very graphically intensive and advanced.
Just waiting for next gen to start rolling to see what he will post.
I'm just wondering what the game project actually is, and what it'll be released on and just what we're to expect the game to showcase.