CNN has appointed Andrew Morse as g.m. of CNN Digital, adding to his previous duties overseeing U.S. newsgathering operations, and has expanded the roles of two other execs, Meredith Artley and Alex Wellen.

Morse takes over for KC Estenson, former SVP and g.m. of CNN.com, who left the company last month amid a round of layoffs at Turner Broadcasting. Morse, who joined CNN in August 2013, was head of Bloomberg TV and spent 15 years at ABC News.

Artley, previously managing editor of CNN.com, is now editor-in-chief of CNN Digital, overseeing digital content worldwide across its mobile, social and desktop platforms and products. She also will oversee the programming of CNN.com, CNNi.com and CNNMoney.

The news cabler named Wellen its first chief product officer, responsible for the product, technology and strategy across all platforms. He will also oversee the global business operations for CNN’s digital platforms. Previously Wellen was VP of business, products and strategy, where he led the integration of TV programming and digital editorial content and spearheaded launches of TV Everywhere and CNNgo services.

Both Artley and Wellen will remain based in Atlanta and report to Morse, whose title is now SVP of CNN U.S. and g.m. of CNN Digital.

“We recognize that digital platforms are often the first screens that touch our users, and that’s why we consider this area of our business and editorial development among the most important we will focus on in the year ahead,” CNN president Jeff Zucker said in announcing the promotions. “I have complete confidence in Andrew, Meredith and Alex, and the talented teams working alongside them in these important roles and can’t wait to see all that they will accomplish.”