The USA Today article linked earlier had some good info. JAX has a lot of potential but they have some problems to start the season.
-Kyle Brady will be out for the first two games, and his backup may also be out. So their 3rd string TE may be the starter in Buffalo.
-Fred Taylor suffered a foot injury and hasn't played much in the preseason; who knows how much it will still be affecting him in Week 1.
-Reggie Williams, the rookie WR, will be starting as the #2 WR. He hasn't done much in camp, but they are thin at WR.
-They have some serious question marks at DE; their two starters totalled 1 sack last year.
-Christie was cut, leaving them with a rookie kicker.
-They have some decent DBs, but only one of the four is playing the same position as last year.
This could be a team to contend with soon, but they still have some things to work out. It will be interesting to see how they come out to start the season.