The 49ers offense has, quite literally, done nothing against the Eagles defense over the first quarter-plus in Week 13, which isn't a winning formula.
Over the previous three weeks entering Week 13, the San Francisco 49ers offense looked much like it did over the first five weeks of the season when head coach Kyle Shanahan's squad casually would score 30-plus points per game.
During the Niners' three-game losing streak, getting to 20 points was off the table.
At the end of the first quarter, following two complete drives by each team, Philly had more first downs (seven) than the 49ers had plays (six). And the Niners' offensive production went in the wrong direction with minus-6 yards of offense on their first two possessions, too.
Fortunately for San Francisco, the defense allowed just two field goals over that first quarter despite lengthy offensive drives by Philadelphia.
49ers offense struggles, Brock Purdy looks jittery vs. Eagles
Quarterback Brock Purdy, making a return to the same venue at which he suffered a torn UCL in his throwing elbow in the NFC Championship game last January, appeared to have none of the swagger and command that he displayed over the previous three weeks.
His first completion didn't take place until the 13:05 mark of the second quarter, and the offense started off with consecutive 3-and-outs en route to those minus-6 yards before that first first-down pickup on the third offensive drive.
If Purdy and the 49ers are going with a strategy of just surviving the first 20 minutes as the road team in a hostile environment, perhaps it's not bad.
However, considering how well the Eagles have moved the ball despite not showing the points in tandem, the Niners have to understand how close things are to getting out of hand.