We're far enough into the season that teams have established themselves as being different from preseason expectations. For example, teams like Buffalo, San Francisco, and Detroit are legit, and their success has not been from just one lucky win after another. With that, we can do a better job of handicapping teams as we have a better understanding of the strength of their opponents so far this season.
This line has been anywhere from NYJ+1 to NYJ-1. This is a perfect example of looking at the teams each of them has played. While the Chargers are 4-1, their four wins have been against four teams who have combined for four wins so far this season. The Jets, on the other hand, have had a tough schedule, and have shown to be able to take care of business at home. The Jets may be on a short week, but the Chargers also have to deal with an East coast 1pm start.