No NFL team is without a glaring flaw. Each has a problem area that must be addressed in order to improve over the course of the 2013 season.
Obviously, some teams have fewer issues than others. It is hard to find much fault with the elite teams in the league, but while the Denver Broncos, Houston Texans and New England Patriots all won at least 12 games last season, they also have problems.
The Broncos need a presence at defensive tackle, the Patriots lack depth in the secondary and the Texans have holes at linebacker.
Bottom feeders like the Browns and Jaguars have many flaws, but even they have one issue that stands above the rest.
So let's get right to it and analyze the biggest roster flaw for every NFL team. Along the way, we will try to figure out some ways that these flaws can become strengths and decide whether teams should look toward the draft or free agency for solutions.