The 2015 NFL regular season is officially over. Your team didn't make the playoffs? Sorry to hear that. Don't worry, a lot of fans have teams that didn't make the playoffs. On top of not even qualifying for the postseason, some teams failed to reach expectations. We can make a small exception for a few squads who had huge injuries (Dallas Cowboys, Indianapolis Colts), but others have no excuses for their pathetic display this year.

Here are the five most disappointing teams this season.

5. New York Giants

Where does one even begin? The Giants defense is atrocious ranking last in yards allowed and last in passing yards allowed as well. Tom Coughlin's future is a mystery with Big Blue. Other than passing for big yardage, the Giants didn't do anything consistently this season. This year was highlighted with fourth quarter blown leads, terrible defensive plays, and losing streaks. After Week 9 the Giants were 5-4, in first place in the division. They finished the season on a terrible note losing six of their last seven games, and have now missed the playoffs four consecutive years. The Giants have so much work to do on the defensive side of the football this offseason.

1. St. Louis Rams

This is an easy one. No more excuses for the St. Louis Rams or Jeff Fisher. The Rams have so much talent and so many draft picks, but they never actually take advantage of all of it. This team has so much potential, and you can see it by some of their wins. The Rams swept the Seahawks this season, and even beat the Arizona Cardinals. On the other hand, they couldn't even beat the Chicago Bears or Baltimore Ravens. Jeff Fisher hasn't made a single playoff appearance since 2008, with the Tennessee Titans. As a matter of fact, Fisher hasn't even posted a winning record since 2008. It's time for the Rams to move on and change their coaching staff. Oh, by the way, Rams fans may be watching their team move back to Los Angeles pretty soon.

Follow Damon Salvadore on Twitter @DamonSalvadore1