Shari Redstone, the chair of CBS parent company Paramount Global, said Wednesday that CBS leadership had made a “bad mistake” with their handling of “CBS Mornings” co-host Tony Dokoupil’s contentious interview last week with author Ta-Nehisi Coates. In stark opposition to what CBS editorial leadership told staff on Monday, Redstone said that she did not believe Dokoupil had violated the network’s editorial standards when he grilled Coates over the contents of his new book...