- Executive Meddling: A rare positive example, and actually how this book came to exist. Larry Niven and Jerry Pournelle had presented their publisher with an alien invasion novel in which the invaders strike Earth with an asteroid in order to soften up humanity. The publisher insisted that the asteroid impact would make a great story all on its own and that while alien invasions were a dime-a-dozen, he'd pay big bucks for the asteroid story. So they went back home, removed the alien invasion, and came back later with Lucifer's Hammer. They eventually published the alien invasion story as Footfall.
Trivia / Lucifer's Hammer