Interesting that Dark Horse wants a full creative team onboard with the submission. On the one hand, it's less work for them. Provide some editing, slap the Dark Horse label on it, and send it off to the printers. On the other, I'd think that, with a strong enough premise, they'd want some ability to make it better. There's only so much you can do to improve upon finished pages.

In the world of children's book publishing, where writing and art similarly share equal space, it's an absolute no-no to submit art along with the script. Those publishers consider it extremely important to select the art and artist themselves.

So I find it interesting. I wonder how many solid premises/scripts they reject because the art isn't clicking. Or maybe they just want the luxury of being able to decide whether or not to keep the original artist.