This sounds about right!
Our thoroughly modern editor will sometimes go by the the name project developer. Rightly so. Even today, books are projects. Acquisition, editing, artwork, production, marketing…all of these are part of the final product that is known as a book. This project must be shepherded through the entire process, guided by a strong vision. Fragmentation of vision is a guarantee of failure.
Someone needs to be in charge of all aspects of the book — whatever form it takes — from beginning to end. This is particularly true if the book is slotted as a transmedia project. Nobody — nobody! — is better positioned to execute the vision than the acquiring editor. It’s a different kind of job. It’s a visionary kind of job.