Arguably, perhaps two (or more?)At heart, Elon is a startup guy not a corporate guy. Tesla has around 20k people in Silicon Valley, and it's just not a startup anymore. It's one of Silicon Valley's big 4 employers (along with Facebook, Google, and Apple). It seems Drew is pretty much running the ship here. Elon is out in Austin basically building out a startup company under the Tesla umbrella, and that's probably a better use of his talents than day-to-day management of a mature organization.