If you're like me, and just skim through the entire article until the part about the Panthers, I'll spare you the trouble:
I watched that Cards-Panthers game pretty closely last week and came away convinced that those are two of the five worst teams in the league: Arizona's secondary would have been the single worst thing I witnessed on Sunday if not for the final episode of Entourage, and Carolina was such a mess defensively that it made Kevin Kolb look somewhat competent (making matters worse, the Panthers lost Jon Beason for the season). But because they played each other, it seems like bettors mistakenly came away thinking, "Arizona might be back with Kolb!" and "Carolina's offense is gonna be exciting this year with Cam Newton and Steve Smith!" which is why both of their Week 2 lines landed three points too low. You'll see.