Green Bay Packers: This might be the most fascinating, wide open and impactful battle in the league. Third-year pro Alex Green took the snaps with the No. 1 offense during the offseason, yet absolutely no one seems to believe he'll stay there. Rookie Eddie Lacy is theoretically the favorite to start. Quarterback Aaron Rodgers lauded his patience as a runner and alluded to Lacy's learning curve in the offense. (This is typical for any rookie.) Rodgers also wondered aloud what DuJuan Harris could do as a feature back; Harris is expected to be ready for camp after having a cyst removed from his lung.