Sharing the workload ensures the website isn't dependent on one individual which can become onerous.
The website administrator is able to create editors, assigning them to specific pages for editing. We've found that if new editors are nervous they are more comfortable if they feel they can't upset other pages.
The administrator can also set a page to be moderated, another comfort for a nervous writer. Once the page is set for publishing the administrator receives an email with a link to the page. The admin can then OK the page for publication once they have looked over it.