Colin Kaepernick is showing Tim Tebow and the Jets how it's done. The 49ers' backup quarterback has been in for four plays in the half and has run twice for 24 yards. The second was a designed run to the left in which Kaepernick followed blocks by Vernon Davis, Joe Staley, Alex Boone and others and got into the end zone for a seven-yard score.
Kaepernick also had a 17-yard run -- he was tripped up by the ankle -- on a read-option play in the first quarter. Kaepernick also attempted, by far, the longest play of the season, one that went incomplete to Randy Moss in the end zone. That was the only time Moss has been targeted. He's been in on 10 plays. Mario Manningham, Vernon Davis and Michael Crabtree have two catches each for the 49ers.
Kaepernick is just one component of an array of personnel packages used by the 49ers so far which have mostly kept the Jets on their heels. Still, the score is only 10-0 going into the half. Another long drive was marred by two straight sacks of Alex Smith, and David Akers missed a 55-yard field goal, his first mis of the year.
The defense, meanwhile, has flummoxed Mark Sanchez, who has ben sacked three times, two of them by Aldon Smith. Smith forced a fumble on the second sack, giving the 49ers the ball with 1:11 left. Alex Smith drove the 49ers on a six-play drive to set up a 36-yard field goal as the half expired.
In addition to Kaepernick, seldom-seen 49ers, Garrett Celek and Ted Ginn also have gotten into the game for the 49ers. Ginn, who missed the first three games with an ankle injury, is handling punts today while Kyle Williams is returning kickoffs.
-- Matt Barrows