Google Drive is Google's file sync app that lets you store all of your files online alongside your Google Docs documents, and keep them synced with all of your devices.
Add titles and captions to new content images for review.
Your reviewer gets a finished image and proposed wording in chat. Add images to your chosen publication folder to start.
Turn creative briefs in chat into media files for content.
Your creators can request media in chat and get finished files there. You choose which formats to offer.