Bloomberg LP is naming product head Vlad Kliatchko chief executive and appointing former Bank of England governor Mark Carney as chair of its new board of directors, according to an internal memo sent to employees by founder Michael Bloomberg and seen by Reuters. The company’s elevation of the head of product “reinforces the foundation that Michael Bloomberg has had for the company since he founded it: he puts the product first, which has been primarily the terminal,” said Douglas B. '”He returned to Bloomberg in 2014, taking over from chief executive Daniel Doctoroff, his friend and lieutenant