Two key Epic execs, COO Mark Shimmel and SVP Promotion and Strategy Erik Olesen, have exited the label due to restructuring, All Access reported this morning. Shimmel left his gig as head of music at Turner to take the Epic job, which was announced last January, while Oleson came to the label in August 2011 after 12 years at IDJ. According to the item, SVP/Promotion Jacqueline Saturn will remain in her post and will oversee all promo operations for the label. [HitsDailyDouble]