The latest layoffs at Tesla (TSLA) this week cut close to the bone of the EV pioneer’s big competitive advantage — its ubiquitous Supercharger network.

As first reported by EV blog Electrek, Tesla laid off nearly the entire Supercharger organization, which was responsible for the build-out of its best-in-class charging network. Major automakers recently signed up to use its NACS (North American Charging Standard) plug.