MR Patrick Cruise O'Brien has taken over as the new chief executive of the Irish telecommunications company Stentor. The company, which is listed on London's Alternative Investment Market, announced yesterday that Mr Cruise O'Brien (28) will replace Mr Jonathan Friedal as chief executive. Mr Friedel will remain on as executive director and will take-up a newly created role of director of product development, it said. The group also announced that its non-executive chairman, Mr Dan O'Neill, is to take on a part-time role as chairman, spending less time with the company.