Who Should Replace Travis Kalanick, and Why?

Travis Kalanick’s temporary leave of absence as Uber’s CEO became permanent on Tuesday, after a group of high-stakes investors sent a letter insisting that the company install new leadership. Now, Kalanick has officially resigned.

In eight years of existence under Kalanick’s watch, Uber has built up a nearly $70 billion valuation as the world's largest ride-hailing service. Along the way, the company made a lot of enemies—with drivers, labor leaders, the taxi industry, and especially government officials at the local, state, and federal level. In furious pursuit of growth, the company has burned through billions of dollars of capital subsidizing rides. Doubts about long-term viability have always encircled this unicorn disruptor among unicorn disruptors.