Fifteen years after Steve Jobs, Tim Cook leaves a dramatically different Apple

Cook exported the smartphone revolution from the US to the world and turned Apple into one of the most powerful and profitable companies on EarthAfter 15 years, Tim Cook is stepping down as Apple’s top executive. At age 65, he leaves behind a hardware juggernaut that, under his leadership, brought about a global smartphone revolution and transformed Apple into one of the most profitable publicly traded companies in history.With a reputation for logistical management, Cook first joined Apple in 1...