It’s pretty amazing that last year heading into camp one of the biggest questions was how does all this tight end depth play out. Then they cut almost everyone, with Buchanan winning the DPR role out of camp and we see Nink/Chandler essentially never come off the field with Andre Carter coming on late in the season.
There’s no question that better cornerback and defensive tackle play will help the pass rush. And really, there’s a lot more to defensive ends than pass rush. It’s a part of the equation, but nearly as important as setting the edge, playing strong at the point of attack, etc.
I think the real question is can they find a legitimate threat as a designated pass rusher. Mark Anderson in 2011, pre-Carter injury, is the only time they ever really had that threat and we saw the results. Had Carter not gone down, the Pats very well closed out the Giants in the Super Bowl.
Buchanan could still be that guy, but I think you’re right, they need to throw more at the wall and I’m sure that will happen in the draft and late free agency.