Social gaming company Zynga announced that Don Mattrick will leave the post of company chief executive officer and founder Mark Pincus will again occupy the post.
Mattrick became CEO in July 2013. Pincus stayed on as chairman and chief product officer, although he relinquished his operational duties last year.
Mattrick focused heavily on Zynga’s mobile gaming efforts, but the company has struggled to gain ground in the social gaming market.
Mattrick, who headed up Microsoft Corp’s Xbox business before joining Zynga, will also step down from the company’s board.
“I am returning to the company that I love in order to accelerate innovation in the most popular categories like Action Strategy and strengthen our focus on our core areas like Invest and Express,” Pincus said in a letter to employees. “I look forward to partnering with our leaders to intensify our focus on social experiences for the millions of consumers who play our games. Zynga pioneered social gaming for the mass market and our mission to connect the world through games has never wavered.”