In his previous role, Corn was responsible for long-term strategy and day-to-day operations as the internet expanded.
She also will lead all web link operations and manage news staff.
She previously served as senior vice president and managing editor of news and politics, reporting to Corn.
Michael Corn and Cherie GrzechNews Nation
Corn previously served as senior executive producer ofGood Morning America.
Before NewsNation, Grzech was vice president of the Washington, D.C. bureau of Fox News.
