Sources: Lyft founders' departures followed months of staff concerns as the company's market value fell 85% to under $3.5B in two years, while Uber fared better (Wall Street Journal)

Wall Street Journal:
Sources: Lyft founders' departures followed months of staff concerns as the company's market value fell 85% to under $3.5B in two years, while Uber fared better  —  New CEO says he aims to boost employee morale and overhaul customer and driver experience  —  Tech Live: Lyft Co-Founder on Stock-Price Tumble, Autonomous Cars