Here is list of players the preformed great last year (07),and this year played horrible. (08)
Seattle Seahawks QB Matt HasselbeckVeteran QB Matt Hasselbeck,lead the Seahawks to the NFC Divisonal games last year against Retired QB Brett Favre. Matt,had 3966 yards and 28 touchdowns in the 07' season (TDS/yards most in his career) This year,he missed most of his games. The worst game Hasselbeck played this season was the week 13 loss to Dallas,34-9. That game was Hasselbecks most yardage game is the 08 season. Week 13's game was a hard game for Hasslbeck,and there offense.
QB Hasslbeck,was sacked 7 times by the Dallas defense (most was by bradie james,2 sacks.)
Hasslbeck had no touchdowns.
Seattle Seahawks RB T.J. Duckett
T.J had 8 touchdowns,but lower yards than J.Jones
T.J was the best RB to score the most TD's.
Seattle Seahawks DE,Patrick Kerney
Patrick Kerney was a outstanding DE in the 2007 season! He had the 2nd most sacks in the 08 season. He got injured in the 08 season,which made him not as outstanding.
Former,Jet and Former Packer-Retired QB Brett Favre
Favre played with the NFL for 18 seasons,he was a Packer for most his life. He was a Falcon in 1991,1992-2007 he was a Packer. What made him not a Packer? He retired in 07,then he decided to come back. The packers did not accept him,but the Jets did. At week 17, Chad Pennington (former jet,now dolphin) played agianst his former team the Jets. Brett Favre had a hard time,throwing 3 interceptions. At the 4th QTR of the Week 17 game,the Dolphins ran the clock to 28 seconds,and put the Jets at there own 1. The Jets attempted laterals,but the failed with the fumble to N.Jones
New England Patriots QB Tom Brady
Brady was injured in week 1,played agianst the Chiefs. Cassel was re-placement,and Cassel almost brung them to the playoffs,but they were short. Brady lead the Patriots to a 16-0 regular season. They fell short of the super bowl game. (lost to the giants.)
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Great teams in 07,horrible in 08

The Hawks ended last year 10-6 after losing to the Packers in the Divsonal game.
This year the Hawks ended there season 4-12 with a loss to the Cardnais in week 17.

The packers ended this season with a win,to the Lions [who ended there season winless] there record was 6-10 (08),and 13-3 (07)

The lions were winless this year,and last year they ended 7-9.

Last year the Jags were in the playoffs,lost to the Patriots 31-20. This year they ended 5-11