Comment by dsr_

Not exactly, but Walter Jon Williams keeps switching genres successfully:

- Napoleonic sea fighting

- early cyberpunk (Hardwired)

- middle cyberpunk around the Solar System (Voice of the Whirlwind)

- late cyberpunk post-scarcity space opera(Aristoi)

- transhuman space opera (Implied Spaces)

- New Mexican police procedural / thriller (Days of Atonement)

- near future thrillers (This Is Not A Game and sequelae)

- fantasy of city infrastructure (Metropolitan and City on Fire)

- comedy of manners (the Drake Maijstral trilogy)

- Fall of the Space Roman Empire (Dread Empire's Fall series)

- Medieval fantasy (Quillifer and sequelae)

and a Giant Disaster novel, a Zelaznyesque SF mystery, and a Star Wars work-for-hire.

There's enough there for five separate authors to make marks on the field.