You're just being silly. Capers doesn't want an extra DB "just because," he's doing it to match personnel. If the offense comes out 3WR and you DON'T counter with 3CB most of the time, you will lose. Horribly.
The only times that Capers regularly matches nickel vs. base offense if it's 3rd and long (but that grouping is odd in the modern game) or if we're playing a team with a great receiving tight end that requires a CB to stop.
Which brings up the next point. It's okay to have 6 in the box against a 3WR set because the offense gave up a blocker.
Similarly, calling 2-1-2 offenses and 4-3/3-4 defenses base is going to stop being the norm. If offenses are 3-1-1 most of the time, THAT will become base. Similarly, nickel will become base defense.
Because again, for all their short comings, our ILBs are the best on our roster at doing their assigned task.
No. Absolutely not. This is the part where you are completely wrong.
Ignore what the roster says and look at their alignment and responsibilities. Our OLBs are ends when we play nickel. They just happen to be standing up. Call nickel ends and nickel OLBs what they are: Edge Rushers. That is their position.
It is customary put lighter, better rushers at end in a 4-2 nickel. Denver, for example, puts Von Miller at end in nickel situations. He weighs 250 pounds. Presumably, DeMarcus Ware will be the other edge rusher. He's 258. Going back a season, Dumervil is 260.
CM3 weighs 255. Perry is 265. Guess what, we're heavier! Swap in Neal and/or Peppers and we're WAY heavier. Our combined weight at "edge rusher" is 520 pounds.
Vikings (Robbinson and Griffen): 532; 12 pounds heavier (Oh nos!)
Broncos: 518 pounds; 2 pounds lighter (Oh nos!)
Of course you have to match up against their personnel; and to be sure, with teams playing more and more and more 3 WR sets on 1st and 10, it makes sense to play nickel against that - but here's the big BUT when it comes to Green Bay...
1) Our ILB's are terrible
2) All of our high draft picks on the defensive line need to be put to use
3) Playing the 2-4 the way Capers does/or did, he is wasting talent on the sideline, offering no pass rush up the middle, and leaving the middle of the defense disturbingly vulnerable.
All of those things have been on display for quite some time with Capers.
Instead of playing the 2-4 and having Perry, D. Jones, and Daniels on the sideline; I'd take either Hawk or B.Jones out, and put one of those pass rushers on the line, or standing up roving - like Baltimore does; play zone behind that - like Seattle does; and mix up the blitz and zone blitz according to matchups.
We can't play the 2-4 the way we have been for the reasons listed above. If we had SF's personnel?? sure - but they are lightyears more talented than we are. Given the personnel TT has brought in, i.e. concentrating on the DL and not LB's, it only makes sense to put that talent to use.
My preference would have been to upgrade our LB's, and then the 2-4 probably works much better for us, but as it is, having Brad Jones and AJ Hawk on the field 24/7 at the expense of more talented players like Daniels, D. Jones, Perry, or Neal simply doesn't make any sense.
We've been fielding one of the worst defenses in the league for the past 3 years - you can't deny that. So why do incessantly try to defend it?? If it ain't Capers and the scheme, then it's the players and TT has done a terrible job of player acquisition. It's one or the other...
Injuries only go so far explaining the dismal results.