Yum! Brands (NYSE: YUM) is the parent company of KFC, Pizza Hut, and Taco Bell. Second-quarter profits fell 16% as KFC's same-store sales in China fell 20%. Problems with KFC's poultry supply in late 2012 led to an avian flu scare that continues to haunt Yum! Brands. Motley Fool analyst Isaac Pino discusses the results and shares why he thinks investors should continue to sit on the sidelines to see if Yum! truly has the problem under control.