Making a Super Bowl bet in February seems odd. Free agency doesn't start for a few more weeks. The draft is two months away. Rosters are going to change a lot before any games are played.
But if you anticipate the right change for a team, you can get good odds before they shift against you. And it's easy to see the New York Jets being the team that has the biggest shift in odds in the next month or so.
The Jets are one of the perennial losing franchises that is creeping up the Super Bowl odds.