Word was that principal designer Artur Ganszyniec left CD Projekt RED, and a quick check on his LinkedIn Page reveals he indeed does not work for the company anymore. Ganszyniec was senior/lead story designer on the Witcher and had been bumped up to principal designer on "Unannounced AAA title" (read: The Witcher 2: Assassins of Kings).
Principal Designer CD Projekt RED
(Privately Held; Computer Games industry)
January 2008 — February 2010 (2 years 2 months)
- story design (form the overall concept to particular quests and scenes) - working on the game vision - project management - managing the design & implementation team - designing tools used in by the implementation team - writing dialogues