Exxon's financial metrics mixed during Tillerson's decade as CEO

By Ernest Scheyder HOUSTON (Reuters) - As the front-runner for U.S. secretary of state, Exxon Mobil Corp Chief Executive Rex Tillerson would bring a global business savvy seldom seen in a Cabinet member, let alone the country's top diplomat. While he may be a "world-class player" - in President-elect Donald Trump's words - the financial metrics of his time as Exxon's CEO reveal some less than stellar results compared with peers. Exxon's shares are way up under his leadership, but lag behind comp