In ECI's podcast, "Building Successful Businesses," we speak to business leaders about the building blocks of their success and the lessons they've learned along the way. Paul Gilshan, CEO of Tusker, the company making it greener, easier and cheaper for you to get a car, joins us for our latest Building Successful Businesses episode to talk about working at ‘the Netflix for cars', how to build a truly sustainable business and the journey from CMO to CEO.