Following various departures at the Telegraph Media Group and in line with its announcement about digital investment, there has been a raft of appointments. Ed Roussel has been promoted to executive editor (digital – web/tablet/mobile), making him responsible for overseeing the strategy for online content. Roussel, who will report to the editor, Tony Gallagher, will also work closely with the commercial and technical teams in order to monetise TMG's digital assets. James Weeks is joining the company from Sky News to take up the post of head of video. He will be based on the newsroom floor and also report to Gallagher. Mark Hughes has been appointed New York correspondent after a spell as crime correspondent. That post now goes to Martin Evans. Tom Whitehead becomes security editor while Martin Beckford moves up to home affairs editor and John Bingham becomes religious and social affairs editor. Duncan Gardham has been appointed as investigations reporter. Finally, Conrad Quilty-Harper has been promoted to interactive news editor, where he will oversee graphics and data journalism on the Telegraph's website and iPad app.