6 Word Descriptions - What Is A Game Designer?

I tried this on Boardgamegeek and got many interesting (and sometimes hilarious) responses:

According to tweetdeck, one of the trending:worldwide topics on twitter is 6 word stories.  Those can be amusing, and I once asked Britannia fans to write the story of my game Britannia in 6 words with good results.

But this time I have something harder in mind: say what a game designer does, or what he is, in 6 words.  Or if that's too challenging, try 10.  I have a version of both, but I'll hold off on it for now.