Welcome back to another edition of NFL University! Stephen Serda, Kyle Posey, and Justis Mosqueda discuss the biggest training camp storylines around the NFL–ahead of this week's preseason games. Mitch Trubisky appears locked in as the Steelers starting quarterback, Baker Mayfield appears to be the Panthers starter, Matthew Stafford finally started throwing for the Rams, and reports about the Patriots offense are not ideal. Learn more about your ad choices. Visit podcastchoices.com/adchoices