Power rankings are good to have, but they only tell you where teams sit in relation to one another in the overall scheme of things. A team lower in rank could easily defeat a team above it if they matchup well with them.
Two new entries to the contenders list--DET and HOU. I picked both of them as dark horse Super Bowl winners before the season, so I'm not surprised at either team. PIT and SD are down the list due to some injuries and inconsistency.
3 teams have fallen from grace here--PHI, ATL, NYJ. I'm surprised by the 1st 2, but not the Jets. I never liked Sanchez and this team has many holes that the media doesn't talk much about. ATL and PHI can still turn it around, but it won't be an easy road. The entire NFC East is sitting in "wild card" status. TEN and WSH have moved up the ranks thanks to their defenses, but I'd be surprised if either are still here a month from now.
The "All-Inconsistency" club sits in the Twilight Zone. Any of these teams could go up or down because it's hard to get a good read on them week to week.
A nasty group of teams at the bottom. All have huge problem areas that likely won't be sorted out this season. Most of them have young quarterbacks that they'll want to groom, but half of these coaches could be fired within the next 6 months.