Will Steelers miss Diontae Johnson more than expected? | How much would Brandon Aiyuk trade help?

On his weekly Chipped Ham and Football podcast, Post-Gazette Steelers insider welcomes ESPN analytics guru Seth Walder. The duo tackles the team's upcoming appearance on HBO's Hard Knocks as well as GM Omar Khan's offseason moves so far -- an possibly moves to come. What do the analytics say about the trade for Justin Fields and the signing of Russell Wilson to make up the team's quarterbacks room? Will Diontae Johnson be missed more than expected after he was traded to the Carolina Panthers for Donte Jackson? Could a trade for the San Francisco 49ers Brandon Aiyuk that fans have long clamored for actually make this team a contender? What are realistic expectations for rookie offensive linemen Zach Frazier and Troy Fautanu? And where does this team fit in the division with the Baltimore Ravens, Cleveland Browns and Cincinnati Bengals statistically?