Lyft is betting that AV could be a game changer for the company.Lyft (LYFT 7.59%) has spent most of its public life in the shadow of Uber Technologies, fighting to prove that a smaller, more focused ride-hailing player can still win. Over the past year, the company has impressed Wall Street by stabilizing its business, improving cash flow, and showing it can operate profitably.But Lyft isn't just tightening its core operations. It's also making a calculated bet that autonomous vehicles (AVs) could transform ...