Campbell Soup Co. said Friday that its Denise Morrison, chief executive of the company, is retiring, effective today. She was CEO for seven years. Keith McLoughlin, a board member since 2016, will also serve as interim CEO. Chief Operating Officer Luca Mignini will focus on the core soup business and integrating the newly-acquired Snyder's Lance and Pacific Foods companies. Campbell Soup shares are down 18.5% for the year to date while the S&P 500 index is up 1.7% for the period.