The Bills and Rex Ryan are finalizing a deal to make him the new head coach in Buffalo, according to a source. Let’s take a look at what this move means for the Jets and their former coach.

1. Will Jets-Bills finally feel like a rivalry? The Jets and Bills have played 109 times since they were both AFL teams in 1960, but the series has never developed the same heat as when the Jets play the other AFC East teams – the Patriots and Dolphins. With Rex Ryan in upstate New York, these games are now going to have a different feel.

You’re kidding yourself if you don’t think Ryan will be fired up to destroy the Jets twice a year. With the Jets, he always got fired up to play the Ravens, his former team, and routinely would make players the game captain for the week they played a former team.

The buildup to Rex vs. the Jets is going to be huge in 2015. Will it last? We’ll see.

2. When Ryan joined the Jets in 2009 he made it Ravens North. He brought a bunch of Baltimore assistants with him and some of the Ravens players, notably Bart Scott and Jim Leonhard. Will Ryan do the same in Buffalo? There is no doubt he will bring Dennis Thurman with him as his defensive coordinator. Thurman is his right-hand man. I would expect defensive backs coach Tim McDonald and outside linebackers coach Jeff Weeks to join him, too.

The most interesting coach to watch is defensive line coach Karl Dunbar, whose contract is up with the Jets. Dunbar has been credited with helping the Jets’ young defensive line develop since arriving in 2012. Muhammad Wilkerson, Sheldon Richardson and Damon Harrison have thrived under Dunbar. Surely, Ryan would like Dunbar to coach the Bills’ defensive line, which might even be better than the Jets’.

Then there are the Jets free agents Ryan will want. Start with inside linebacker David Harris. The Bills are strong at the position, but Harris could be a valuable teacher of Ryan’s defense in Buffalo. Safety Dawan Landry would fall under the same category. If nothing else, their agents can use the possibility of joining Ryan in Buffalo as leverage if the Jets want those players back.

3. On the surface, it is surprising Ryan would go to Buffalo, where he will face many of the same problems he had in his six seasons with the Jets. The defense is strong, but they have no answer at quarterback. EJ Manuel was benched and Kyle Orton retired after the season. That leaves Ryan in a familiar position.

So why take the job? Because the Bills wanted him bad. The Falcons were interested, but never scheduled a second interview. Ryan was losing patience with Atlanta despite his desire to go there. Buffalo wooed him (and threw a bunch of money at him). Ultimately Ryan’s self-confidence has him thinking he can fix whatever ails the Bills. He must be salivating at what he can do with the talent on the Bills defense.

The Bills have not made the playoffs since 1999, the longest drought in the NFL. But they went 9-7 in 2014 and look as if they are a few pieces away from being a good team. If Ryan can get the Bills back to the postseason, he will be treated like a conquering hero.

4. I’d love to know what Bill Belichick thinks about Ryan staying in the division. Even though the Jets only won one of their last six meetings, they usually gave the Patriots everything they could handle and Tom Brady rarely looked comfortable against Ryan’s defense.

One of Ryan’s biggest complaints early in his tenure was the Jets were the only team in the division that ever beat the Patriots, making it impossible to win the division. Now we’ll see if Ryan can get the Bills to be a team that gives the Patriots trouble.

5. The staff at Dave & Buster’s in Buffalo better get ready. Ryan is known for having team dinners there.