Overstock.com announces the appointment of Vidya Jwala as SVP, demand fulfillment   SALT LAKE CITY, 2016-Sep-20 — /EPR Retail News/ — Overstock.com, Inc. (NASDAQ:OSTK) has named Vidya Jwala as senior vice president of demand fulfillment, responsible for overseeing the e-commerce leader’s sourcing, merchandising, supply chain and customer-care businesses. Jwala joins Overstock from Walmart, where, as vice president of…