Why was the Packers defense so bad today? (It looked just like the Pittsburgh game).?

The #2 defense in the NFL is not supposed to give up what seemed like 100 pes up the middle of the field for 20 yard gains each time. It's as if the defense couldn't adjust. They just keep running the same scheme every time for some unknown reason. But this exact same thing happened to them against Pittsburgh. Roethlisberger had over 500 yards against the Packers defense because the Packers ran the same defense every play. The Packers defensive scheme must be very easy to figure out. And the opposing team knows Capers (the defensive coordinator) doesn't know how to adapt or adjust during the game. He's good for creating schemes before the game but he has no clue on how to adjust to stop the team that has figured them out. Capers is the problem. He's simply incapable of adapting. That's my theory. I feel very confident in my theory, too.