i wouldn't say minnesota is on the decline. with their improved d they may be going places.
chicago might not be too bad either. their d will be good, so it all hinges on what kind of qb rex grossman turns out to be. by not too bad, i mean they may be good enough to finish 8-8.
i think the popular picks for the team on the rise are detroit, cincinnati and arizona. buffalo and miami could suprise as well.
a market on which team improves the most in regular season wins would be interesting. i don't know who the favourite would be - maybe miami or minnesota.