Interesting convo with Shelley a few hours back about co-writing the pilot for
Untitled George Clooney Project. In the past the way I've co-written stuff is (a) beat it out at the white board (b) someone writes up the beats into an outline (c) the other person rewrites that (d) lather, rinse repeat till good. Then (e) someone writes up the outline into a script, (f) the other person rewrites that, (g) lather, rinse repeat till good.
Shelly prefers that one person writes acts 1 and 2, while the other writes acts 3 and 4. Then swap. Then swap again. The advantage being that both writers get to a first crack at creating voices for the characters, and you can pick which voices work best. If someone writes the whole first draft, it's hard for the second person to ignore the voices that are already there.
So we'll try it Shelley's way. Always up for trying something new and possibly better. Just so no one asks me to sit in the room typing while my co-writer spouts dialog. I think that tends to ruin the thought processes of whoever thinks slower (and more methodically) than the other.