NFL Power Rankings Week 5: 3 Biggest Disappointments so Far

A team can have all the talent and world and be coming off a big season, but the reality is if you don't play like a team than you're going to get burned.

Four weeks into the NFL season, there are a few teams who have come out flat and are currently searching for answers, wondering what happened to their 2010 magic.

Here are the three biggest disappointments of the 2011 season thus far.

3. Kansas City Chiefs (1-3)

After a breakthrough campaign in 2010 that saw the Chiefs win the AFC West, Todd Haley's squad responded by getting outscored 89-10 in their first two games against the Buffalo Bills and Detroit Lions (no, that's not a misprint).

Haley has taken heavy criticism for not getting his team prepared headed into the season, quarterback Matt Cassel has been half the quarterback he was in 2010 and, to top it all off, star running back Jamaal Charles is out for the season with a torn ACL.

The Chiefs have played better lately, but beating the Minnesota Vikings isn't exactly a grand accomplishment, either.

2. Atlanta Falcons (2-2)

Sure, 2-2 isn't a horrible record, but for a team that was considered one of the elite teams of 2010, the Falcons have taken a curious turn for the worse.

The Falcons had trouble rushing the passer last season outside of defensive end John Abraham so they opted to add former Minnesota Vikings defensive end Ray Edwards opposite Abraham. Despite the move, the Falcons have yet to record a sack in three consecutive games. This is despite the fact that they've played against the offensive lines of the Philadelphia Eagles and Seattle Seahawks in two of these games.

And for a secondary that was supposed to be improving, giving up 275 passing yards per game wasn't what we expected.

Did I mention the offense has been struggling? What has happened to the Falcons?

1. Philadelphia Eagles (1-3)

The Eagles were seen as Super Bowl contenders coming into the season given their strong 2010 campaign and their additions in the offseason.

But the only additions that have pulled their weight have been defensive ends Cullen Jenkins and Jason Babin. Cornerbacks Nnamdi Asoumugha and Dominique Rodgers-Cromartie have oddly underachieved, while running back Ronnie Brown decided to throw the ball backwards at the goal line in the Eagles' Week 4 loss to the San Francisco 49ers.

On top of that, the offensive line is once again performing poorly. Quarterback Michael Vick shouldn't be blasting the officials. He should be blasting the guys who "protect" him.

It's time for the Eagles to put up or shut up.