People often think that editors are there to read things and tell people “no.” Saying “no” is a tiny part of the job. Editors are first and foremost there to ship the product without getting sued. They order the raw materials—words, sounds, images—mill them to approved tolerances, and ship. No one wrote a book called Editors: Get Real and Ship or suggested that publishers use agile; they don’t live in a “culture” of shipping, any more than we live in a culture of breathing. It’s just that not shipping would kill the organism. This is not to imply that you hit every sub-deadline, that certain projects don’t fail, that things don’t suck. I failed plenty, myself. It just means that you ship. If it’s too hard to ship or you don’t want to deal with it, you quit or get fired.
Paul Ford, “Real Editors Ship”