Once, acquisitions editors could be expected to handle a lot of the developmental editorial work of a manuscript, taking it from an agent at an earlier stage than is likely now. (publishingperspectives.com)
If your book needs editorial work or illustrations completed, you will be assisted by a specialist working in those areas. (archwaypublishing.com)
In fact, most actual editorial work (reading, content and line edits) happens at night or over the weekend. (blog.reedsy.com)