Game Company Zynga's CEO Replaced

Head of Microsoft's XBox division to step in

Zynga CEO Mark Pincus is stepping down, to be replaced by Don Mattrick, the head of Microsoft's Xbox division.

It's a surprising turn for Zynga founder and current CEO Mark Pincus to set aside his ego and do what's best for his company.

Mattrick has turnaround experience, and is credited with growing the Xbox user base from 10 million to almost 80 million. Before joining Microsoft in 2007, he was an executive at gaming company Electronic Arts, which is conducting its own CEO search.