Bills' defense holds keys to Super Bowl LX hopes

"For the first time in four years, the Bills defense did not rank in the top 10 in both scoring and total defense. Brandon Beane responded by signing Joey Bosa and getting aggressive in the draft," Ballentine wrote.

"Bosa, 29, will join Matt Milano as two talents who have shown the ability to be at the top of their position when healthy. The problem is the latter has played in just nine games over the last two seasons. The former has been on the field more, but injuries and aging have limited him to 13 sacks over the last three years.

"The Bills added CB Maxwell Hairston, DL T.J. Sanders, Edge Landon Jackson and DL Deon Walker in the first four rounds of the draft. If they can get immediate contributions out of them, along with Bosa and Milano, then they are going to be right back in the top 10."

Teams with a good offense or defense without the other unit shining often make the playoffs, but they fall short of being a true Super Bowl contender. That was the case with the Bills last season after they were eliminated in the AFC Championship Game.

The Bills have had a good defense in the past, but last year saw a regression. If the Bills were better on defense, they may have found a way past the Chiefs.

If the defense improves this season, the Bills' chances of making it to the Super Bowl increase. If not, it will be a difficult season to stomach for Buffalo.