Forget founder mode. All of Elon Musk’s companies need manager mode

SpaceX’s current halo moment is the best argument for handing over the company reins to someone else.

Among the ever-expanding portfolio of brands that Elon Musk oversees, one has stood out lately. It’s not the constant high-wire act that is Tesla, or his hot-mess plaything X. It’s the company that’s been making news not for controversy, but for achievement: SpaceX.