NFL Power Rankings: Which Teams Disappointed Most in NFL Week 1?

Well after the first Sunday of NFL action, it's safe to suspect that more than a few teams are in panic mode.

That being said, not only did they disappoint their fans, but they disappointed those who have them going a long way.

So who are these teams we speak of?

Let's begin with the Kansas City Chiefs.

Kansas City Chiefs

Poised to repeat as AFC West champs, the Chiefs made some solid offseason moves to improve their team such as acquiring slot WR Steve Breaston from Arizona.

However, the Buffalo Bills came into Arrowhead Stadium with a different attitude, and completely dismantled the 2010 AFC West champions.

Obviously since the Bills aren't in the AFC West this isn't a huge loss for K.C., but it calls for panic-mode.

When you lose your opener 41-7, to a team that finished 4-12 last year, if you're not concerned then something is wrong.

In addition, you can easily expect the Chiefs to drop in the power rankings.

Atlanta Falcons

After a great season in 2010, the Atlanta Falcons came in 2011 as considered the NFC South favorite in addition to being a Super Bowl contender.

Well, when 4:30 p.m. rolled around on Sunday, all appears to be for naught because coach Mike Smith's offense was shut-down by the Chicago Bears and Brian Urlacher.

QB Matt Ryan failed to throw a TD pass, and the Falcons only TD came on a pick-six in the fourth-quarter.

They couldn't even come close to converting the two-point conversion thereafter, the Bears' D was so zoned-in.

If Atlanta wants any shot at redeeming themselves, it better start next week.

The only thing in their favor right now is that the entire NFC South went 0-4 in Week 1.

Pittsburgh Steelers

It's not like there were any significant changes to the Steel Curtain, but for some reason, they continue to struggle the season after winning the AFC championship.

After Pittsburgh brought home the Lombardi Trophy in 2005, they went 8-8 in 2006 and missed the postseason.

Same occurrence in 2009.

They won the Super Bowl in 2008, but only finished 9-7 a year later and missed out on the postseason.

This season, another bad start after making a Super Bowl appearance, and it came in the form of a 35-7 loss to the Baltimore Ravens.

A beginning like this was the last thing the Steelers needed, especially with Cincinnati and Cleveland both being improved teams.

2011 NFL Power Rankings

1. Green Bay Packers

2. New England Patriots

3. Philadelphia Eagles

4. Baltimore Ravens

5. New York Jets

6. New Orleans Saints

7. Houston Texans

8. San Diego Chargers

9. Chicago Bears

10. Pittsburgh Steelers

11. Atlanta Falcons

12. Detroit Lions

13. Tampa Bay Buccaneers

14. Jacksonville Jaguars

15. Dallas Cowboys

16. New York Giants

17. Indianapolis Colts

18. Arizona Cardinals

19. St. Louis Rams

20. Buffalo Bills

21. Kansas City Chiefs

22. Washington Redskins

23. Oakland Raiders

24. San Francisco 49ers

25. Miami Dolphins

26. Carolina Panthers

27. Cincinnati Bengals

28. Tennessee Titans

29. Minnesota Vikings

30. Denver Broncos

31. Seattle Seahawks

32. Cleveland Browns

Be sure to check out John on Bleacher Report.

And, you can follow him on Twitter @ Sportswriter27.