What happened: Cleveland Browns linebacker Carson Schwesinger is preparing for his second season as the defense's 'green-dot' playcaller following a 156-tackle rookie campaign. Meanwhile, the Pittsburgh Steelers secured tight end Darnell Washington with a four-year, $42 million contract extension, prioritizing his role in heavy blocking schemes.

Why it matters: Schwesinger's development is critical for a Browns unit transitioning after the Myles Garrett trade. In Pittsburgh, the investment in Washington signals a commitment to a physical identity under new head coach Mike McCarthy and quarterback Aaron Rodgers.

What to watch: Training camps will determine if Deshaun Watson retains the starting QB job in Cleveland and how Baltimore resolves its four-way battle for the starting center position.