This story was originally published on Restaurant Dive. To receive daily news and insights, subscribe to our free daily Restaurant Dive newsletter. Dive Brief: Yum Brands is undertaking a strategic review of its Pizza Hut division that may culminate in a sale of the chain, the company said in a Tuesday announcement.  The strategic review may not result in a sale, and the company has set no specific timetable for it, according to the announcement.  Pizza Hut has had a difficult stretch. In the U.S. it ha ...