True but can't we say this about every defense...every year? You can only play so many elite QB's with elite offenses and so any really poor QB/Offense's and a bunch of average ones or worse d/t injuries, changing of the guards, etc. We did give up a ton of yards which should be a concern, no doubt. But we did play straight up almost the entire year (re: the front 7), had no depth at OLB, dropped Willis in coverage for most of year, no off-season, etc.
This year, I'm expecting the front 7 will be much more aggressive and creative and the secondary should benefit greatly from this. There is or will be more depth at key positions and it will be year 2 of Fangio's defense where he SHOULD start opening up the playbook and dictating more. If we can continue to win field position and score some points, I would expect Fangio to release the hounds a bit more. There is a plethora of options when you have the front 7, esp. the LB's, that we have!
But to your point, we still have some areas that we seriously need to address...like playing vanilla, too much Willis in coverage, not creatively attacking, playing our secondary WAY off, S's taking MUCH better angles and helping out more over the top, etc. Lots of areas to improve esp. when the odds are stacked against us re: getting that many sacks/QB pressures/hits and TO's again.