At 6-3, the 49ers remain very much in the hunt for a playoff spot. Though they now trail the Seattle Seahawks by 2½ games in the NFC West, the Niners are a talented team that still has plenty of time to build momentum over the second half of this season.But after nine games, San Francisco has shown it's having trouble beating some of the better teams in the NFL.The Niners were routed by the Seahawks in Seattle, dominated by the Colts a week later and on Sunday couldn't score a touchdown in a 10-9 loss to the very physical Carolina Panthers.In all three of those games, the Niners' passing offense was shackled. Quarterback Colin Kaepernick's passing numbers in those three games were horrible. In those three losses he's averaged just 122.6 yards passing with zero TD passes and 1.6 interceptions.As Eric Branch of the San Francisco Chronicle noted, the 49ers have averaged just 5.7 points in those three losses, while Kaepernick has had seven turnovers and a 35.0 passer rating. The combined score in losses to Seattle (9-1), Indianapolis (6-3) and Carolina (6-3) is 66-19.San Francisco entered Sunday's game on a five-game winning streak, with the team averaging more than 30 points...