#1diehard made some good points.
First off, McCarthy is a horrible coach. Terrible with in-game adjustments, and more often than not fails to have the team properly prepared. He calls the plays, and is awlful at it. They normally do well against lesser teams, but get exposed in the playoffs. He has had TWO HOF quarterbacks and only one Super Bowl appearance.
Second, Ted Thompson was one of..if not the...worst GM in the league. He did not draft well. He found a few middle round gems, but his early round picks were mostly busts. With a few exceptions, he refused to use free agency. He had a chance at Randy Moss in 2007 for something like a 4th round pick, and passed (even though Favre was willing to give up some of his salary to sign him). He refused to give Rodgers a quality offensive line. He refused to address the glaring holes on defense. He kept Dom Capers as DC even though Dom's defenses were horrible.
Had Aaron Rodgers not fell to him in the draft, and had he not signed Charles Woodsen (on of the FEW free agents he signed, other than some JAG's), the Packers not only would not have sniffed even one Super Bowl, but would have probably not even made the playoffs most years. Aaron Rodgers has carried the Packers.