George instead reorganized Alexa around the Amazonian ideal of fast-moving “two pizza” teams, each devoted to a specific Alexa domain, like music, weather, lighting, thermostats, video devices, and so on. Each team was run by a so-called “single-threaded leader” who had ultimate control and absolute accountability over their success or failure. (The phrase comes from computer science terminology; a single-threaded program executes one command at a time.)
