Zynga chief marketing, revenue officer resigns (AP) SAN FRANCISCO - Jeff Karp, the chief marketing and chief revenue officer at Zynga (ZNGA), has become the latest executive to leave the struggling online company behind "FarmVille" and other games. In August, Chief Operating Officer John Schappert left the company after less than a year and a half on the job. Schappert's exit was followed by that of Mike Verdu, the company's chief creative officer. Karp was hired at Zynga in August 2011. Silicon Valley isn't sharing Zynga's misery How ordinary people become extraordinary 10 characteristics of highly successful people Zynga says the groups that Karp oversaw have been moved to other divisions in the company. That means he is not being replaced. San Francisco-based Zynga's stock closed down 6 cents, or 2 percent, at $2.82 on Monday. The stock is down 72 percent from its December initial public offering price of $10.