Tegna’s board of directors elected Dell executive Howard D. Elias as non-executive chairman, succeeding the retiring Marjorie Magner, who served as board chair since 2011. Elias will assume the chairman role immediately following the company's annual shareholders meeting on April 26. He brings a strong background to the media company as president of Dell Services, Digital and IT, where he oversees technology and deployment services, consulting, global support and…