3. J.C. Jackson
It was unclear whether or not J.C. Jackson would even play in this game up until hours before kick-off. When it was announced that Jackson would play it was assumed that he would have a huge game and would make the Chargers' defense very hard to match up against.
While the defense did its part in maintaining this Chiefs offense, Jackson did not have a great game himself. Jackson was targeted a lot in this game, including on the deep touchdown pass to Justin Watson that tied the game on third and 10.
Jackson was beaten in coverage on that play and narrowly tipped the ball with his fingertips before Watson took it across the goal line for six. Granted, Brandon Staley confirmed after the game that Nasir Adderley was meant to be over the top on that play, so Jackson thought he was getting safety help.
That play was not fully on Jackson but it did not change the fact that he didn't play too well in his first game back from the minor ankle surgery. According to Pro Football Focus, Jackson was targeted eight times in this game, allowing seven receptions for 79 yards.
The promising thing about this is most of those yards came on the touchdown pass, with the Chiefs instead targeting Jackson a lot underneath.
The defense did a good job rallying to the football and it didn't really factor into the Chargers losing, but Jackson himself would admit that he needs to play better and be the true CB1 that the Chargers signed him to be.