Yahoo's site lists hundreds of jobs available around the globe, and Killen brings in her regional managers for joint talks on closer marketing execution, like media sales campaigns in several countries at once.
Through outsourcing, joint ventures and strategic alliances that stretch around the globe, they are coming to resemble loose networks of relationships.
Now 37, Oliver drops in on his half-brother a few times a year while scouring the globe for mega finance deals on which he can give advice as joint global head of UBS Investment Bank's Financial Institutions Group.