Three observations …
• Updating Jared Allen's stat sheet vs. Steelers left tackle Mike Adams: 2½ sacks, one holding call, one key hurry and one Steelers trade for Cardinals left tackle Levi Brown.
• A confident Panthers QB Cam Newton travels this week to Arizona, where he threw for 422 yards and two TDs in his NFL debut in 2011. Next up: A Winfield-free (maybe) Metrodome next Sunday.
• Percy Harvin is a great player, but teams that have employed him but were unable to play him because of injuries are 8-0 in their past eight regular-season games.
Two predictions …
• The Lions' streak of losses in Wisconsin will reach 23 on Sunday.
• The Bears' 29th-ranked pass rush won't enjoy facing Drew Brees.
