Officially speaking: Pass interference

The Seahawks' firing of Jim Mora changed the subject here on the NFC West blog, but the division has other business this weekend, of course.

With the Packers visiting Arizona in the wild-card round, I wanted to revive a periodic feature here.

Officiating is generally something we discuss after controversial or confusing calls. I've tried to anticipate potential issues.

Scott Green is the referee assigned to the Packers-Cardinals game. His crew has called 12 penalties for offensive pass interference, five more than any crew has called. The Packers' Donald Lee and the Cardinals' Larry Fitzgerald and Anthony Becht are the only players on either team with such a penalty this season (each has one).

The Packers have committed nine of the 15 penalties for defensive pass interference among the teams, led by Tramon Williams (four) and Charles Woodson (three). Bryant McFadden (two) is the only Cardinals player with more than one.

Officially speaking: Calls by crew

The chart shows accepted and declined penalties for each of the 17 NFL crews by type, according to ESPN Stats & Information. I limited the data to first, second and third downs to exclude most special-teams plays.