Paul Zeise Live: What do mixed results from Kaleb Johnson, Steelers running game mean?

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Live at 5 p.m., Post-Gazette sports columnist Paul Zeise reacts to the Steelers running game's performance in the first two preseason games against the Jacksonville Jaguars and Tampa Bay Buccaneers.

What should we make of Kaleb Johnson's mixed results over the past couple of weeks as he looks to assert himself in the backfield next to names like Kenneth Gainwell and Jaylen Warren? Are offensive linemen including Broderick Jones, Zach Frazier, Mason McCormick and Troy Fautanu showing enough progress in Arthur Smith's offense for the running game to work consistently? And how might Aaron Rodgers under center change things compared to backups Mason Rudolph and Skylar Thompson?

Paul tackles those questions and also weighs in on the Pirates' weekend series loss against the Chicago Cubs at Wrigley Field.