EDEN PRAIRIE, Minn., 2016-Apr-29 — /EPR Retail News/ — SUPERVALU INC. (NYSE:SVU) today announced that experienced financial executive and corporate board member Mary Winston has been appointed to SUPERVALU’s Board of Directors effectiveApril 27, 2016. Ms. Winston joins the Board having most recently served from 2012 through August 2015 as the Executive Vice President and Chief Financial…