The Arizona Cardinals were busy during the initial frenzy of free agency, especially on the defensive side of the ball. Craig Grialou, Paul Calvisi and Rob Fredrickson talk about the additions of defensive linemen Bilal Nichols and Justin Jones, cornerback Sean Murphy-Bunting, linebacker Mack Wilson and more. Plus, we'll break down the trade for Falcons QB Desmond Ridder and the addition of offensive tackle Jonah Williams in the wake of D.J. Humphries' release.

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