Lead Drivers substitute for the drivers of open routes, supporting drivers to complete routes, and provides other operational support as directed by the Route Manager, which will include training new drivers, retraining, and follow up training of current drivers. WM has the largest disposal network and collection fleet in North America, is the largest recycler of post‑consumer materials and is a leader in beneficial use of landfill gas, with a growing network of renewable natural gas plants and the most landfill gas‑to‑electricity plants in North America.