langford will have a good year, but look out for merling mostly.
the guy's production and imput in the game skyrocketed as the season went on, and he finished with a huge pick 6 against the jets. he was asked to play multiple positions ( 5 technique, 7 technique in our dime package, 3 technique in our 4-2-5 nickel package) but next year, with JT back ( who will be our 2nd pass rusher opposite porter in nickel and dime) , merling will concentrate on 5 technique and that's about it (a little bit of goalline also, but that's normal) so i think he'll learn/progress even faster.
If his progression continues in '09 as i foresee it, he'll be a probowler without a doubt.
As for langford, he played the 5 technique ALL year but didn't progress as much (even though i really like what he does). he'll be a very effective player on running downs but his pass rush won't be showcased like merling's ... and that usually doesn't help to get you noticed, because the average football fan doesn't see the player who seals a gap and makes the RB bounce in a LB's lap. the average fan doesn't see the relentless pass rush against a tackle and guard that crushes the pocket. No, the average fan sees and watches the sacks, the tackle for losses, etc etc. and langford simply doesn't produce that much, even though he's a VERY effective 5 technique, so don't be disapointed people if langford doesn't put up surprising stats next year, and don't go thinking he's a bad player, because those guys up front are the unsung heroes of our defence (whenever it's successful, that is :D)