There is no doubt that we are living in an era in which insurers have been called to transform their business offerings, infrastructure and operations. Successful transformation translates into new revenue opportunities, stronger customer relationships and sustained brand relevance.

Aon chief executive Greg Case has launched a robust defence of the insurance broker’s failed $30 billion (€25.5 billion) takeover of rival Willis Towers Watson, describing the logic of a deal shot down by US regulators “as strong today as…