UPDATE 2-Zynga CEO resigns, founder Mark Pincus steps back in
April 08, 2015 at 20:14 PM EDT
April 8 (Reuters) - In an abrupt changing of the guard, Zynga has announced that Chief Executive Don Mattrick will step down and founder Mark Pincus will return to lead the company as it struggles to adapt to the changing tastes of gamers.
