1. Tom Brady (2008)
First, let’s put this into perspective. The Patriots went 11-5 in 2008 with Matt Cassel as their starting quarterback. That shows how good they were because Cassel ultimately wasn’t great by any means. It’s tough for Pats fans to look back at that season because Brady might have been the difference. He sat out the entire year after he tore his ACL in the season opener and the Pats’ hopes died.
Chiefs defender Bernard Pollard hit the legend low and Brady paid the price (via Boston Globe). It was a dark time for the franchise because they had lost the Super Bowl. It looked like they were about to become the first perfect team in history but they couldn’t hold their nerve. Then, they lost the biggest star in their comeback year. Cassel had a decent career year by his standards but he wasn’t Brady.