What Steelers' Will Howard, Drew Allar MUST Show in Preseason Opener in Mike McCarthy's Offense

Christopher Carter of the Pittsburgh Post-Gazette, hosts the Locked on Steelers podcast, and is joined by Jenna Harner of WPXi-TV. The Pittsburgh Steelers start their preseason against the Green Bay Packers Thursday, and both Will Howard and Drew Allar will be playing a lot. But what do they need to show to prove they can operate in Mike McCarthy's offense? Christopher Carter and Jenna Harner go…