we thought it might tie our hands quality-wise
I do think this is a great idea!
Chad Allen Zollinger

True, but one of the rules did say you’ll edit heavily if you feel the need to do so.

If multiple writers work on the same chapter and only one is chosen, the others might feel like they wasted their time or something.

The sign up/chapter-assigning should be public so that other writers know who has dibs on which chapter. Also, that might motivate the writer to deliver by the deadline if they know everyone is waiting. No pressure, haha