With her unpermissive persona and Central Bank enforcer pedigree, Fiona Muldoon was an inspired, if somewhat surprising, choice to take the helm at FBD five years ago, just months after joining as CFO. The insurer was widely seen as a financial calamity, with a series of profit warnings suppressing both investor confidence and its share price. In 2015 alone, the company posted a pre-tax loss of €88.5 million.  Muldoon, a tenacious, unyielding presence in the boardroom and across the wider organisation, was retained to stem the losses and restructure the business to a sustainable path. When Muldoon announced her intention…