"Four holding penalties never help. Neither does this borderline-bizarre rule on catching the ball in the end zone. But one week after emphatically finishing their offensive drives, the Green Bay Packers sputtered in the red zone in Sunday's 30-23 win over the Carolina Panthers.

Offensive coordinator Joe Philbin said he doesn't want to come across as a "smart aleck," but, well, this got frustrating.

"In-between the 'Calvin Johnson Rule' on catching the ball and what they call holding these days, it's hard to get a great feel for it," Philbin said.

For several reasons, Green Bay's offense stalled deep in Carolina territory. With a chance to slam their foot on Carolina's throat in the third quarter - their defense forcing a trio of turnovers - the Packers settled for three field goals.

Last week, they scored touchdowns on all four of their red-zone possessions. This week, the Packers were 1 of 4. A pair of long touchdown passes provided enough punch to win.

The typical challenges of scoring inside the 20-yard line never change."