Single drafter, parallel drafting, layered drafting, live co-writing — the mistake is never picking the wrong one, it is drifting into one by accident and being surprised by its failure mode. Set the four real constraints of a project below. The design, the failure mode you are signing up for and the owner’s main job rebuild themselves as you move.
The four questions that decide it
Move any control. Every line of the recommendation on the right is traced back to something you set here.
Experts holding unique knowledge4
Deliverable length2,200
Calendar days available21
Regulated, audited or safety-critical?
Is there someone whose objection can kill it?
What the coordination actually costs
Adding writers does not make writing faster: the links between people grow faster than the hands do. Switch the wiring and watch the number.
10
Your design
Not a label — a set of instructions for how this specific document gets written.