I was referred to this page by RossG68 in Live Chat, and it is just what I needed to decide which of the writing roles to give to a friend who has offered to write an article for my site.
I trust what they write and want them to be able to edit their own work, but they don't need to edit anyone else's work, so Author will be their role.

Thanks for this, its very helpful. - Shirley

Carlton, thanks for the post. It will get read and re-read.

Thank you for taking the time to go through the training, drop a comment, and like the training.

Thank you.