Premiere Pro :: Footage In Several Location On A Local Server

Not having used Premier all that much - as I leave that to the editor, I have a question around Premier and its file usage. We save our source footage in several location on a local server. Video in some folders, Sound in others, backgrounds in yet other folders. The editor creates a project, then a sequence where she pulls all the files together - so, for instance, lets assume it is a prject sequence that consists of:
 
1) Background footage of a field
2) Green screen footage of character #1 moving around
3) Blue screen footage of characters #2 mocing around
4) Music Layer
5) Vocal layer
 
She creates and saves her project on the server in the specific project folder. I am now interrested in collecting those files through premier and storing them all in one place, then copying that collected structure to her local machine to see if response will be better for her editing - our network is not the best at the moment, and we are still working on solutions. She will then have all the source footage and files sitting on her local maching, along with the Premier project file.
 
She now completes her edit and we are all happy with the way it looks. How do we get that specific edit back onto the server (at the end of the specific edit, as well as daily for backup purposes)? Do we have to recopy and replace the entire folder every time, or do we just copy the project file back to the server? Will this require a relink of every single piece of footage?