Mandatory Credit: USA TODAY Sports

29. Jim Schwartz

Schwartz spent five seasons as the Detroit Lions’ head coach, his only time in the hot seat as the top dog. The Lions made the postseason in Schwartz’s second year in charge but didn’t do much else to please their fans during his tenure. Furthermore, he became notorious for the occasional tactical gaffe, with one of the worst coming in 2012 against the Houston Texans after a blatant illegal touchdown.

Mandatory Credit: USA TODAY Sports

After Justin Forsett’s knee hit the ground early, it was clear that the officials would overturn the touchdown. But Schwartz threw down his challenge flag anyway. However, the rules state that illegally throwing down a challenge flag results in a 15-yard penalty. Furthermore, the play immediately becomes unreviewable. As a result, the illegal touchdown stood and it was all Schwartz’s fault.

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