TL;DR: I'm working on a Dojo playbook at https://wiki.centos.org/Events/Dojo/Organizing
The Dojo planning process has been a bit hidden for the last few years, and I'd like to make it more public, for two main reasons.
One, transparency is important, and the community should know what I'm doing for you, and have some input into how I spend my time, to ensure it's actually beneficial to you.
Two, I want your help. I want volunteers to step up to do Dojos, and as Aman alluded to in his email, people get intimidated with the size of things, and don't know where to step in to help. Having a detailed playbook gives people a way that they can step up and help with a small part of the process, or do their own event, once they can see exactly what's in volved.
So ... if you have insight into event planning, please do help with this documentation project. Thanks.