Takeaways from NFL preseason Week 2: Is the Raiders' young secondary ready for primetime?

Week 2 of the NFL preseason is underway, with NFL Nation reporters analyzing key roster questions emerging from each game. Among the notable storylines, the Las Vegas Raiders' young secondary is being evaluated for readiness, while receiver Jacob Cowing is reportedly pushing the San Francisco 49ers to make decisions at the wide receiver position. Additionally, the Dallas Cowboys and New Orleans Saints were each fined $500,000 following brawls during joint practices.