I wouldn't expect many changes. We haven't extended our best DL yet so it's hard to envision going out and getting an elite rusher in FA. The draft is another option, but development is hit or miss. Lately it's been more miss.
I agree that the D-Line is not really the problem. They follow Bill Belichick scheme where the DL of the 3-4 hold the 5 OL in front of them, so that the LB's can make tackles, or pressure the passer. Seymour really hurt losing him this year, which I don't doubt the deal for the future where the Raider's state is currently right now. Wilfork is probably the #2 NT in football and was an all pro last year, and Warren holds his own, and is worth his contract. Green is perhaps the best backup for a 3-4 that there is - before the injury. So we have got Warren and Wilfork to man the D-line, but guys like Derrick Burgess who was brought in to take Seymour's spot. No doubt we will have to look in the offseason via free agency and the draft. A few guys out there in the draft that can play in the 3-4 defense and are DE/OLB Hybrids.
Greg Hardy Ole Miss- Will probably have to trade up to get him, but he can be had in the mid teens to early 20's.
Sergio Kindle Texas- A smaller DE/OLB but has been explosive pass rusher at Texas and fits the hybrid mold. I would love to snag him in the 2nd round.
Corey Wotton: Another DE/OLB who could be had in the mid 20's. Very Smart player, good pass rusher and can play the run. Wouldn't be a bad snag.
Jermaine Cunningham: Has had two seasons where he has been excellent. A Dumbervil type, who is a great speed rusher. We need one of these guys.
Brandon Graham: A very smart, productive player out of Michigan. Has the size and athletic ability to play in the Pats system. I really like him a lot.
These are a few guys in the draft that I think we will/should look at. We addressed the O-Line and secondary last year, not it is time to address up front. It is clear this is one of the key pieces we are missing by watching them this season.
Brees could have eaten a sandwich, and drank a bud light tonight with the lack of pressure. We can't win this way anymore with our personnel. No Law, No Harrison in the secondary without pressure= disaster. This needs to be fixed.