What it means: The Packers are 2-0 and have given themselves a better-than-even shot of making the playoffs, based on the history of undefeated Week 2 teams over the past 20 years. (Teams have started 2-0 made the playoffs 64.1 percent of the time over that stretch.)
Hero: Linebacker Clay Matthews maintained his 48-sack pace by recording another three of them Sunday against the Bills. Seriously, Matthews is the first Packer to have three sacks in two consecutive games, and he now leads the NFL with six. At this point, I'm guessing no NFL team will open a game against the Packers without plans to routinely double-team him.
Unsung hero: I was pretty impressed by rookie safety Morgan Burnett's fourth-quarter "interception." I put the word in quotation marks, because what Burnett really did is pull the ball from Roscoe Parrish's arms on a short pass to the right flat. That tells you something you want to know about any safety: That he's got the proverbial "nose for the ball."
Injury of note: The Packers removed left tackle Chad Clifton midway through the second quarter and replaced him with rookie Bryan Bulaga. Coach Mike McCarthy said Clifton didn't look healthy, and Clifton was limited in practice last week because of a knee injury. But as Greg A. Bedard of the Milwaukee Journal Sentinel points out, you wonder if the decision will mark the start of a permanent transition to Bulaga, who was the team's first-round draft pick and will eventually be a full-time starter somewhere.
What's next: In eight days, the Packers will take on the Chicago Bears at Soldier Field on ESPN's Monday Night Football.