A lot of big names recently decided to leave Sony studios. First up is Stig Asmussen, the creative director for God of War 3 . Asmussen left after the cancellation of his new project and the recent layoffs that hit the studio. It is currently not known if Asmussen left due to personal reasons, or if he was a victim of the layoffs. Asmussen was the lead environment artist on God of War and the art director of God of War 2 .
Second up is Jamie Griesemer, who is no longer working at the Sony subsidiary Sucker Punch. Jamie only worked at the studio for two years, after having worked at Bungie for twelve years where he worked on all Halo games and was lead designer on Destiny from 2008 to 2010. Griesemer too is not talking about his departure from the studio.
Source: Gematsu