City "supermum" Laura Carstensen is leaving the Competition Commission in a move that seemingly rules her out of taking over the anti-trust regulator's powerful successor body.
Mrs Carstensen, a former Slaughter & May partner who has juggled inquiries into the audit and airport markets with raising six children, was thought to be a contender for the chief executive role at the Competition & Markets Authority.
Lord Currie was announced as the body's £185,000-a-year chairman-designate last week, leading to speculation that a lawyer as chief executive would complement his economics background.
Mrs Carstensen, who was the commission's deputy chairman until the end of last year, is understood to be joining MLex, a regulation-focused media outlet, as a non-executive director. She will stay in post until the inquiry into the big four accountancy firms ends next year.