Kate Gulliver's path to CFO is one of the most unconventional in corporate finance. She led Wayfair's global talent function for six years before stepping into the CFO and CAO role, having previously run investor relations and come up through McKinsey and Bain Capital. A Harvard MBA and board member at PVH Corp., she's become one of the most cited examples of what a truly cross-functional, people-first CFO looks like in practice.