12. Forrest Gregg
The Cincinnati Bengals have done almost nothing exciting for most of their existence. But they did make Super Bowl XVI against the San Francisco 49ers. However, Gregg didn’t have the tactical chops to outwit the opposition and they failed to upset the Niners. After falling 20-0 behind in the first quarter, the Bengals slowly grew into the game and got scores on the board. They were nine feet from San Francisco’s endzone when Gregg failed in his duties.

He told his QB to offload to fullback Pete Johnson and repeated this multiple times. But each time, the Niners sniffed it out. Gregg’s lack of flexibility and know-how prevented the Bengals from reducing the deficit. It also potentially cost them a win on the biggest stage of them all. These decisions matter.