I haven't worked with a single game designer that hasn't within a few hours needed something 'more' from what ever you give them. It's the nature if the beast

I haven't worked with a single game designer that hasn't within a few hours needed something 'more' from what ever you give them. It's the nature if the beast that designers want more from AI/Scripting coders who in turn want more from the engine coders who in turn want more from the hardware manufacturers and 3rd party libs they use who in turn want more from the electrical engineers who in turn want more from the silicon researchers who in turn want more from the physicists who usually ignore you. That's the games industry :)