Huffington Post Loses Executive Editor Tim O'Brien

Huffington announced today via company memo that Tim O'Brien, executive editor of the online publisher, will be leaving the site to work on the second of his five-part book deal. Per the memo, Huffington noted, "In the next few days, Tim's reporters will transition to the editorial team of Howard Fineman, Peter Goodman, Ryan Grim, Kate Palmer, John Montorio, Sam Stein and Amanda Terkel." 

O'Brien joined The Huffington Post early in 2011 from The New York Times, where he served as a reporter as well as the Sunday Business editor of the paper.