Murder by Death
When Christine set up the details of the site layout, she created a category for everybody who is here (so far). Once that user creates a post and assigns it to their category, it automatically creates a link in the left menu that will show all that users’ posts aggregated onto one page.
The hitch(es) are that Administrators have to remember to create the category when the user is created (at the moment it’s just me, but eventually will be Christine and whomever she assigns an Admin role), AND the user has to remember to assign their category to their posts.
I found a plug-in that eliminates half that need to remember. It’s called Restricted Author, and it allows you to set a default category on a per user basis. (You can also restrict authors to certain categories, hence the name, but I’m not using that feature.)
Admins still have to create the category when they create the user and make sure it’s assigned to them as the default, but now whenever any of us create a post, it will automatically assign that post to our category.
NOTE: The category is only set upon saving the post (either Publish or Draft), so when you first open “new post” the category won’t be checked.