That's an editor.
The big-picture person who reads your words after you've spent months stringing them together and re-tooling them and running them by other people to make sure you're not completely off the mark. It's essential to work with an editor you trust. Also, you'll want to work with someone who will take the time to explain where the story isn't working and offer solution-oriented suggestions.
Right now my third book (The Mainframe) in the series is with my editor. I checked in with him today to see how things were going and he emailed this:
|Scott Tipton hard at work reading The Mainframe|
It's also good to find an editor who has an imagination and a sense of humor.
Keep writing. It saves lives.