Favre will make the Jets better, that's for sure, but does he make them playoff contenders?
Keep in mind, this is the same team that went 4-12 last year.
Of course, they wouldn't be the first team to make that kind of turn around either. (The Chargers went 4-12 the year before they went 12-4 and lost to the Jets in the playoffs)
It's almost a given that the Colts, Chargers, and Patriots will win their respective divisions.
This makes the Jets' competition the Jaguars, Titans, Texans, whoever doesn't win the AFCN between Cleveland or Pittsburgh, and maybe Denver and/or Cincinnati.
I think Favre can push them over the top.