> In my experience, 9 times out of 10 delegating sections of content with a final edit and sign off by a designated individual would work very well - no real time collaboration needed.

So that's actually how we do our internal weekly presentation. Each team has a section, and we all work on it. (Albeit in realtime)

> no one is really sure when a slide is finished

You can assign slides in pitch and update their status. So everyone knows who is responsible for something and what state it is in.

https://help.pitch.com/en/articles/4318642-set-a-status-and-...