After the offseason the Arizona Cardinals have had in 2021 it is obvious they felt the need to address the defense.
They did so not only in free agency, but also in the 2021 NFL Draft.
Bleacher Report did a power rankings of each defense after the offseason, and they have the Arizona Cardinals ranked 14th, and the second best in the NFC West.
From B/R:
2020 Points-Allowed Rank: No. 12
2020 Yards-Allowed Rank: No. 13
The Arizona Cardinals’ offseason moves made it abundantly clear that they are done rebuilding and ready to seriously contend in 2021.