Sakuga Thread #1

So here's an attempt at to get some long term Sakuga discussion going here.

Some Links:
The Sakuga Wiki [JP] - http://www18.atwiki.jp/sakuga/
ANN - http://www.animenewsnetwork.com/encyclopedia/

English Sakuga Blogs:
http://aninomiyako.wordpress.com/
http://www.pelleas.net/aniTOP/

English Sakuga Twitters:
http://twitter.com/raito_kun
http://twitter.com/Duune99
http://twitter.com/kyouray
http://twitter.com/catsuka

To start things off, here's a Summer Wars MAD with Key animator's listed:
http://www.youtube.com/watch?v=hpoHxWV3IG0

Here's a question, when people say "Animation Director" what kind of job does that exactly mean in terms of anime production?

The scriptwriter sets out the story, dialogue and other setting information with the Director. The storyboard artist then draws out how he/she would envision the scene to play out based on the script, again with the Director on hand.

But what does the Animation Director then do? Do they tell the Key Animators how to draw a scene? How many frames to use? What kind of shading, level of detail? Do they draw any animation themselves? What's the difference between, say having Yutaka Nakamura as an Animation Director vs some hired Korean Animation Director.