While the Philadelphia Eagles and Miami Dolphins garner deserved praise for their surges to 3-0, many NFL teams are dealing with disappointment.

The term itself is relatively vague, so let's define it. To determine our selections, the primary factor was judging teams on actual performance against their preseason outlook.

For example, the Houston Texans weren't expected to excel. Houston's current 0-2-1 mark—though precisely not a positive—is less frustrating, relatively speaking, than even a few winning records. Several teams expected to contend for the playoffs haven't impressed and/or have put themselves at an early disadvantage in the standings.

Consider the list in ascending order, culminating in the most disappointing team of the season so far.

5. Los Angeles Rams

The promising note is the Los Angeles Rams are still 2-1 and standing atop the NFC West. The reigning Super Bowl champion's outlook is nowhere close to a doom-and-gloom situation.

But the offense certainly isn't passing the eye test.

During the opener, Los Angeles gained just 243 yards while ceding seven sacks in a blowout loss to the Buffalo Bills. Then, the Atlanta Falcons nearly overcame a 21-point fourth-quarter deficit while the Matthew Stafford-led attack sputtered. Most recently, the Rams mustered 339 yards in a semi-comfortable yet dissatisfying win over the Arizona Cardinals.

Stafford has more interceptions (five) than touchdowns (four). Cam Akers was a relative no-show until Week 3. Akers and Darrell Henderson have combined for a mere 3.8 yards per carry. Marquee free-agent signing Allen Robinson has totaled seven catches for 88 yards.

In all likelihood, the Rams will start excelling again. To this point, though, there's no question the unit has disappointed.