Your designer, editor, and photo desk can't work on the same page at the same time
Your designer’s laying out the page, but your editor can’t touch the copy and your photo desk can’t swap an image until the file’s free. Your whole team waits their turn instead of working at the same time.
With InDesign and InCopy working together, your designer builds the layout while editors edit copy and photo desks manage images, all in the same file, at the same time.