Tom Cibrowski, who had top roles at ABC News, has been named president and executive editor of CBS News. Cibrowski’s appointment follows the exit of Adrienne Roark, who announced last week that she was going to Tegna for a senior role.

CBS News has hired a well-regarded TV veteran as its No. 2 executive — even as insiders speculate that the broadcast giant’s boss is on the way out. The Tiffany Network appointed former ABC News executive Tom Cibrowski to the role of president and executive editor of CBS News,

This marks a return to CBS News for Cibrowski, who earlier was a broadcast producer for CBS News' The Early Show.

CBS News has named Tom Cibrowski as president and executive editor, taking over for Adrienne Roark, who departed last week for a job at Tegna. "Tom brings a clear vision, fresh perspective and competitive edge that will serve us well here at CBS News.