3. Adam Gase
We suppose Peyton Manning was wrong. The legendary NFL icon described his former coach as a ‘quarterback guru.’ It’s too bad that this wasn’t the case in New York, because Gase arguably ruined Sam Darnold’s career before it even began. The Jets hired him in 2019 but fired him after two seasons. They started with a mediocre 7-9 losing record in his first year.

This was tolerable but they immediately regressed. Gase departed after a disastrous 2-14 season where he showed all of his flaws. One of the main issues was his lack of flexibility. He used the same system that worked for a slow Manning in Denver (via Forbes). But this didn’t suit the mobile Darnold. Meanwhile, the Jets’ defense was nonexistent. Gang Green felt like they were in purgatory.