I don't mean to come across as "lol SF is teh sucks either", definitely think the game could go either way. Stuff I mentioned is what makes me confident as a Packers fan though.
VD has graded out poorly as a run blocker all over the place (PFF, FO, advanced stats) since like 2008.
either way, that article doesnt address my post in general. nickel package is bad against big linemen. you want LBs on the field when we do power runs.
effective run defending teams already run nickel against run packages. Steelers do it a ton out a 4-6 alignment.
Something like this:
------TE---RT---RG---C---LG---LT----
----74-----79---------90---------------
-------------------------------99-----50
--------20-------------56---------------
The 46 type 2-4-5 alignment is a very run strong alignment, and trades some front 6 coverage ability to be where they can shut down the run.
Its hard to run nickel (2-4-5) as base and not be absolutely abused in the run game. When teams got it going though GB could bring out the 3-4 or the fat men formation with 3 NT's and shut it down. It also wouldn't work without that trait in your back pocket. Though a lot of teams are using more and of the amoeba concepts that Dom heavily integrates into GB's D.
It's not that unusual, most teams spend well over 50% of the game in nickel packages.