Oculus VR, known for its Oculus Rift virtual reality headset and acquisition by Facebook, has a history of attracting industry talent. Former Google Glass engineer Adrian Wong joined the company in 2014 , a year after gaming veteran and id Software co-founder John Carmack , who was joined by fellow id alumnus Kenneth Scott . Now, though, the company is suffering its first major departure: Mary Lou Jepsen.Facebook's executive director of engineering and head of Oculus VR's display technology division, Jepsen is reported by CNET to have chosen to leave the company to develop a wearable device designed to help cure diseases using magnetoresonance imaging (MRI) technology.Jepsen's departure comes as Oculus VR shuffles its chief operating officer post: former COO Laird Malamed, co-founder of the company, is moving into a general manager role in the company's Seattle office and is to be replaced in the COO role by Hans Hartman, who comes from a stint at wearables specalist Fitbit.