The Cardinals added depth to their running back room by adding veteran Marlon Mack to the mix. Running backs coach Autry Denson joined Craig Grialou and Paul Calvisi to talk about Mack's arrival and what it means at the position, what has impressed him most about James Conner and what he wants to see from his group in Friday's preseason opener against the Broncos at State Farm Stadium. Plus, Grialou, Calvisi and Kyle Vanden Bosch discuss Isaiah Simmons' move to safety, the opportunity for the young cornerbacks and what positions they will be watching during Friday's game.

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