Caroline Little, CEO of North America for Guardian News & Media, is assuming day-to-day responsibility of ContentNext Media, effective immediately. She is replacing current CEO Nathan Richardson, who is taking an executive job with the e-commerce fashion company Gilt Groupe. Little has been on the board of ContentNext since its acquisition by Guardian News & Media last summer. She told the staff today that the move isn’t a precursor to merging ContentNext with Guardian or Guardian America editorially. “Our goals remain the same, and we need to continue to stay focused and execute on them,” she said.