Rio Tinto is streamlining operations and drafting a fundamental reset to accelerate projects with quicker and better returns. The strategy overhaul is courtesy of the mining giant’s former head of the iron ore division, the group’s biggest business, who became chief executive officer a few months ago. New Rio Tinto CEO Simon Trott will unveil his vision of a streamlined Rio Tinto at a Capital Markets Day event in London on Thursday. Trott has signaled that reorganization will continue to fundamentally reset the company’s businesses.…