Chartered accountant John Cresswell is to take on the role of interim chief executive of broadcaster ITV, stepping up from his role as chief operating officer of the company. Cresswell has said he will stay to lead the company through the appointment and arrival of a new chief executive, but has said he seeks 'a fresh challenge' and will be leaving the broadcaster once a replacement has been found. The interim role will begin once a chairman to succeed Michael Grade has been appointed. ITV said: 'Sir Crispin Davis and Sir Michael Bishop have both recently confirmed to the nominations committee of the board that they are not candidates. The committee has revised its shortlist accordingly and is continuing its search with all due speed.' A member of the ICAEW, Cresswell has held roles of finance director, chief operating officer and interim chief executive officer during his time at ITV.