Officially speaking: Referee confidential

Posted by ESPN.com's Mike Sando

NFL officiating crews have assessed between 9.3 and 16.2 penalties per game this season. The range was between 8.9 and 14.3 last season.

The chart breaks down crews by referee, penalties assessed per game, replay challenges and replay reversals.

John Parry and Jerome Boger remained the only referees without a replay reversal this season. Parry shot down Cowboys coach Wade Phillips, who had been 4-0 in challenges this season.

Ron Winter, working the Colts-Packers game, became the fifth referee to suffer two reversals in a game this season. He reversed Indy touchdowns on consecutive plays, but the Colts scored on the third try.

Scott Green, working the Seahawks-Bucs game, suffered his league-high fifth reversal of the season when Mike Holmgren challenged Ike Hilliard's fumble.

Assessed penalties have climbed over the last three weeks. The crews of Walt Anderson (49ers-Giants), Boger (Jets-Raiders) and Winter (Colts-Packers) each assessed more than 20 penalties during Week 7, the first time this season three crews have reached that total.