I didn't see many games last year, but from what I took away was the defense operated pretty efficiently. I want to say the secondary played well against the pass. the major difference between Fangio and Pagano however is in turnovers, they don't happen very often anymore. I'm a self-professed NOT X's and O's guy so I can't really explain schematically why that is with roughly all the same personnel. so rather than dialing up the pressure and getting in people's faces to force fumbles, they're like a more finesse style defense with Pagano.
2019 they did have a huge array of injuries to deal with. unlike 2018 where they were mostly healthy.
I liked the Lovie Smith philosophy about getting at least 3 turnovers a game. it never really worked against Rodgers, as the Packer fan orphan that lives on our board tries to emphasize about 60 times a day he just doesn't throw interceptions. I don't have a solution for this problem. the Chicago Bears organization isn't reading CCS for tips, you know.