Rachel Corp has stepped down as chief executive of ITN with immediate effect, the company has announced. ITN said on Tuesday that Ms Corp had left her role after four years in post and would be replaced by Ian Rumsey. After joining as a trainee, Ms Corp worked at the company for more than three decades and held a number of senior leadership roles across the organisation including editor of ITV News London, 5 News and ITV News before her time as chief executive. Mr Rumsey is a Bafta- and RTS- winning producer who joined ITN in 2005 after beginning his career in newspapers. He has held senior leadership roles at the company including programme editor of ITV News’ News at Ten to chief content officer at ITN Productions. Ms Corp, who will remain at ITN until May 22 to ensure a smooth transition for her successor, said: “After a great deal of reflection, I have decided that the time is right for me to step down as CEO and pursue new opportunities.…