Uber COO says there's a downside to being at the top

Uber COO Andrew Macdonald said large companies with new ideas move more slowly than startups as employees get "fat" on the resources.Zed Jameson/Bloomberg via Getty ImageUber is one of the largest ride-hailing companies in the world, with more than 200 million users.Uber COO Andrew Macdonald said that kind of scale makes innovating at the company harder.The executive said Uber has a program called "Growth Bets" to incubate new business ideas.At the top, it's hard to know where else to go.In an i