McCoy completed his first possession with a 27-yard touchdown pass to receiver Josh Cribbs and also capped another drive with a 37-yard TD strike to tight end Benjamin Watson.
Watson hauled down a pair of passes for 56 yards and Peyton Hillis carried the ball five times for 16 yards and a touchdown.
Aaron Rodgers went 6-for-8 passing, gaining 74 yards and firing a touchdown for the Packers.
Green Bay's Ryan Grant, playing his first game since the 2010 season opener due to an injury, ran the ball three times for 13 yards.
Notable deaths of 2014 [PHOTOS]