After dominating the league on the defensive side of the ball throughout the 2009 and 2010 seasons, the Jets took a significant step back last year.
In 2009 and 2010, the Jets allowed just 14.8 and 19.0 points per game, which ranked first and sixth in the league, respectively.
Last season, the Jets allowed 22.7 points per game—good for just 20th in the league.
The cause of the drastic drop off was the regression of the team's linebacker corps.
Bart Scott is not the player he used to be, Bryan Thomas has suffered some troubling injuries and Calvin Pace has seen his sack total decrease in each of the last two seasons.
The regression at linebacker, coupled with the new-found strength of the defensive line, has led the Jets to consider a 4-3 defense going forward.
In a 4-3 scheme, New York will be able to force more pressure on the opposing quarterback and finally find a consistent pass rush.
Although the scheme will probably be effective, the team will encounter some offenses who are fit to dominate oppositions with a 4-3 system.
Here are six offenses who will be tough matchups for the Jets' new-look defense.