I see a lot of people saying that Capers used to play more man coverage? The Packers played more snaps in 2-Man coverage last year than any team in the NFL... Also, sprinkled throughout the season, Capers made some masterful calls at key points in games that directly contributed to big plays for the defense. The two Haha Clinton-Dix INTs VS the Colts were both disguised trap coverages that fooled Andrew Luck and TY Hilton. There are many of these throughout the season that I saw and was really impressed with.
There are also bad moments, but one thing to consider is that, the Packers played the best offense in the NFL, with the best WR, who also boast the (far and away) best offensive mind in all of football in Kyle Shanahan, in their stadium, twice last year. Truthfully, the Falcons won probably 5 of their games before they even kicked the ball off based entirely on Kyle Shanhan's play calls/play designs. He embarrassed every good D coordinator in the entire NFL on occasion last season. Those were IMO the Packers two worst games defensively all year. I think it's sometimes helpful to keep that in context a little bit.