Yahoo has been struggling lately under CEO Marissa Mayer, and with stock that has dropped roughly 20 percent in the past 12 months and projected revenue dropping by 15 percent and projected earnings by more than 20 percent, there have been recent calls for the entire Yahoo board to be replaced. According to Business Insider's sources, Verizon would more or less combine Yahoo with AOL and put AOL CEO Tim Armstrong and Verizon's executive VP Marni Walden at the helm if successful on acquiring Yahoo. One of the sources also indicated that Verizon has currently valued Yahoo's core business at under $8 billion.