SharePoint 2010-2013 Consolidate Weekly PowerPoint Slides

Our team creates their own weekly slides to review activities and add them to one powerpoint file in a shared drive.

Can this process be simplified in SharePoint so a user can upload their slide(s) in a library and they be automatically placed in the appropriate weekly slideshow together?
I make 2 slides, you make 3 slides, he makes 1 slide…. and they put themselves in one powerpoint file.

This may not be the best way to approach it but I have to consider a better method for this process I’ve no doubt happens in many offices.