TL:DR; Cool numbers, but what should I take from this table?

Comparing the defense from (2017 to 2020) to (2021 to now)

we:

- allowed less points per drive

- less opponent drives ended in a score

while:

- defending shorter fields (we gave opponents better starting field position on avg.)

- having an offense that on average didn’t score as often

- having an offense that scored less per drive