That sound you hear is several head coaches stirring in their seat. That's because their collective butts are all getting a little hot.
The hot seat is part of the harsh reality of being a head coach in the NFL, and things can change rather quickly. One season, a coach could be leading their team to the playoffs or to a championship game, and shortly thereafter, he could find himself answering for many of the team's shortcomings.
That being said, the hot seat is not reserved for coaches who have fallen from grace. There's plenty of room for guys who were brought in with hopes of changing the culture and have since failed to meet those expectations.
We'll see a good variety of coaches that fulfill both criteria as we look at the men who need to put together a solid 2013 season in order to keep their jobs.