It’s very difficult to identify the best Browns head coach since 2000. That’s because the franchise is better at being garbage than nearly every other team. Perhaps Kevin Stefanski has the edge over Butch Davis because he brought the team back from its 0-16 season. They made the postseason again in 2020 but lost the divisional game.
However, the case for the worst head coach is very easy. Hue Jackson only won three games in three seasons with the Browns. This included one in his final two seasons in charge of the team. Amazingly, fans continued to support the team during this horrendous era (via Ranker).