Adam Gase
Sam Darnold became the youngest Week One starting quarterback of the modern era after the Jets picked him in 2018. But his spell with the franchise was a disaster because of their inept head coach, Gase. The legendary Peyton Manning allegedly recommended Gase to the Jets because he was a ‘quarterback whisperer.’

On paper, it seemed like Gase and Darnold would be a match made in heaven. Instead, Gase failed to use his young star properly and broke his confidence. In the end, the franchise fired him because they were going nowhere. Meanwhile, Darnold found himself in Charlotte after the Jets moved on and traded him to the Panthers (via North Jersey).