Back in October I wrote an article about the flawed way offenses in the NFL are described by analysts. Media members have a tendency to tell you about how NFL offenses were decades ago rather than accurately portray what is happening in today’s NFL with their West Coast Offense Authentic Kelvin Beachum Jersey , Air Coryell, and Erhardt-Perkins labels.The Jets’ hiring of Gregg Williams has served as a reminder that this is not limited to offense. Analysis of defense is also weighed down by outdated descriptions.Much time and attention has been provided to the Jets changing from the 3-4 system of Eric Mangini, Rex Ryan, and Todd Bowles to the 4-3 system of Gregg Williams.But it isn’t quite that simple. In the modern NFL, these labels have become largely obsolete.Perhaps the biggest issue is that today’s NFL doesn’t make it practical to run a 4-3 or a 3-4 as a base defense. By definition a 4-3 defense has 4 defensive linemen, 3 linebackers, and 4 defensive backs. A 3-4 defense has 3 defensive linemen, 4 linebackers, and 4 defensive backs.The rise of the modern passing game has greatly reduced use of these personnel packages on defense. When offenses regularly put 3 or more receivers on the field, defenses cannot play only 4 defensive backs. At least 5 defensive backs are necessary on most plays, which means removing at least 1 lineman or linebacker. That means the defense becomes something other than a 4-3 or a 3-4.Consider this.Over the last two seasons Vance Joseph’s Broncos had their “base” package with 4 defensive backs on the field more than any team in the league, and they still used it less than half the time.But even if we assume this isn’t true, there are other ways these rigid labels no longer work.Beyond the way personnel groupings are dictating things, offenses have become more and more sophisticated over time. Every defensive playcall has weaknesses. If you are running the same thing over and over on defense http://www.newyorkjetsteamonline.com/quincy-enunwa-jersey , modern offenses will know exactly how to attack it and eat you alive.As a result, virtually every defense in today’s NFL has to mix up its defensive looks over the course of a game. That includes its fronts. Let’s take a look at some of the fronts from the Week 3 game between the Jets and Browns. We can compare “3-4 Todd” Bowles and “4-3 Gregg” Williams.We will start with some of the looks the Jets showed.In this expertly drawn box we can see “3-4 Todd” went with a 3 defensive lineman look. No shock there.But then this expertly drawn box shows “3-4” Todd with a 4 defensive lineman front. Things get back to normal in this expertly drawn box as the defense of “3-4 Todd” has 3 linemen.But yet again “3-4 Todd” had 4 defensive linemen in this expertly drawn box.Now let’s switch to “4-3 Gregg.” This expertly drawn box shows the Browns with 4 defensive linemen.But then this expertly drawn box shows “4-3 Gregg” with only 3 defensive linemen.Things get back to normal with “4-3 Gregg” in this expertly drawn box as the Browns have 4 defensive linemen.But then “4-3 Gregg” only has 3 defensive linemen in this expertly drawn box.By the way, every single one of those shots came in the first quarter of the game the Jets and the Browns played. Hopefully they show how the fuss between 4-3 and 3-4 is vastly overrated in today’s NFL.There was a day where clear distinctions existed between 3-4 and 4-3 defenses.Many 3-4 scheme in the past asked their linemen to cover 2 gaps (spaces between offensive linemen). The job of these linemen wasn’t penetrating. It was really to tie up blockers so that linebackers were free to make plays.One of the advantages of the scheme came from the standard 4 man pass rush. In addition to the 3 linemen, the fourth pass rusher could be any of the linebackers. The offense had no idea which one it would be before the snap.A team that ran a 4-3 in the past might assign each lineman a single gap and ask the other gaps to be taken by linebackers (and/or safeties). The linemen could penetrate and make plays. While it was usually more predictable, it gave the chance for big, elite athletes to make more impact plays since their job was to get into the backfield instead of tie up blockers.There was a point in time when few teams ran a 3-4, which arguably gave those teams an advantage.Star caliber defensive linemen who consistently penetrate and make impact plays are hard to find. Linemen who are strong enough to fill two gaps and hold up at the point of attack aren’t as difficult to acquire. Furthermore, with most of the teams in the league running a 4-3 at that point, these stout gap fillers weren’t useful to most of the league and thus could be obtained cheaply. The same goes for pass rushing 3-4 outside linebackers. These tended to be athletes who weren’t big enough to hold up as 4-3 defensive ends. With most of the league running the 4-3, these guys weren’t in demand, but they fit the 3-4 well.The classic 2 gapping 3-4 defense has largely gone out of style. While some teams have a single linemen or even a couple 2 gap, you’d be hard-pressed to find a team that asks all of its linemen to do so for most of the game. I would argue that the rise of the modern passing offense again has something to do with it. As the passing game has continued to grow in importance, defenses have put more of a priority on rushing the passer, which requires more penetration through a single gap and puts less of a premium holding the point of attack to contain a pair of gaps.A lot of looks that are nominally 3-4 in today’s NFL have responsibilities that resemble a classic 4-3.This isn’t entirely new either. Wade Phillips has run his defense like this for decades.So in many ways the only functional difference between a 3-4 and 4-3 is whether an edge guy has his hand on the ground. If either edge guy in the picture below just got into a 3 point stance Womens Buster Skrine Jersey , this would be a 4-3 look. Since neither does, it’s a 3-4 look. But there really isn’t any difference otherwise.In conclusion, the whole 4-3 vs. 3-4 thing is overblown. I keep seeing people talk about scheme fits. For example, I see discussion about whether a pass rusher is an option for a 4-3 team because he projects more as a 3-4 outside linebacker. This is flawed thinking. In today’s NFL quality edge rushers are an extremely valuable commodity. It shouldn’t matter whether that edge guy is more comfortable standing up as a linebacker or putting his hand on the ground as a defensive end. Your team should be able to accommodate him. When we talk about scheme, we should think about blitz rates, utilization of man vs. zone, most common coverage shells, and the roles that need to be filled within the system.4-3 and 3-4 have become largely obsolete labels. The New England Patriots have approached the final week of the regular season with a postseason-like focus.No, really. A first-round bye through the AFC playoffs is on the line Sunday, so they insist they're not taking their game against the lowly New York Jets lightly."It's a one-game season," running back James White said. "We've got to play our best football this week." The Patriots have not played during wild-card weekend since the 2009 season, when they were blown out 33-14 by Baltimore. They also failed to make it to the Super Bowl the other two times under coach Bill Belichick (2005 and '06) that they played during the opening weekend of playoffs.So, New England wants a win, which would clinch the franchise's 13th first-round bye in AFC playoffs since 2001 http://www.newyorkjetsteamonline.com/steve-mclendon-jersey , the most in the NFL during that span. The Patriots (10-5) would also earn a bye with losses by Baltimore, Houston and Tennessee on Sunday.But they'd prefer to take care of business themselves against the Jets (4-11)."I mean, for us, this is a playoff game, so we just worry about what we can control," safety Patrick Chung said.There's also an outside shot New England could clinch home-field advantage throughout the AFC playoffs with a win — which would be its 500th in the regular season — combined with losses by Kansas City and Los Angeles Chargers.Speaking of Gillette Stadium, Tom Brady and the Patriots are the only team in the NFL without a loss at home (7-0). They could complete an undefeated home regular season for the seventh time since 2002 with a sixth straight victory in the series with the Jets."It's always tough when we play these guys, home or away," White said. "They're going to come in ready to play no matter what their record is. We've just got to play our best football — which we haven't done yet and which I've said a lot this year. I think we all know that we can play better in general and maybe that's enough motivation for us to go out there and play our best."The Jets' playoff hopes vanished months ago and this is expected to be Todd Bowles' final game as coach. New York failed to reach the postseason in any of Bowles' four seasons and needs a victory to just match the team's 5-11 records of the last two seasons.Bowles' bunch could have some extra motivation: spoil the Patriots' plans."It would be awesome," left tackle Kelvin Beachum said. "But that's not what it's about. It's about pride and about finding a way to get a win."Here are some other things to know when the Jets and Patriots face off in Foxborough:BRADY'S BUMMERBrady is coming off his worst performance of the season with his 48.3 passer rating in a 24-12 win over Buffalo his lowest since throwing four interceptions against Indianapolis in 2006.He has 25 touchdown passes, his fewest since also tossing 25 during the 2013 season. But the 41-year-old Brady has no plans to step away from the game anytime soon. In his weekly radio spot with Westwood One Sports Radio on Monday, he said he fully intends to play beyond the end of his contract in 2019."I absolutely believe I will," Brady said. "I know I've talked about it a long time. I have goals to play not only next year, but beyond that."THE END? All indications are that Bowles will be fired by the Jets sometime after the clock hits zero on the scoreboard Sunday. Bowles has mostly declined to discuss his job status or his future http://www.newyorkjetsteamonline.com/robby-anderson-jersey , despite the speculation swirling for weeks, and his family has inevitably been exposed to."My private life will remain private," Bowles said. "I don't insulate them from anything. My kids go to school and they're tough minded, they can take care of themselves and the Mrs. can take care of herself. We understand where we are and I've got no problems with my family."SOARING SAMJets quarterback Sam Darnold is playing the best ball of his young career to cap his rookie season.He was 24 of 35 for a career-high 341 yards and three touchdowns with no interceptions last Sunday in New York's overtime loss to Green Bay. In the three games since returning from a foot injury, Darnold is 64 of 97 (66 percent) for 764 yards and six TDs with just one INT."You just want your quarterback to be the most consistent player on the field," Darnold said, "and that's what I try to strive to be every single week."DOUBLE TROUBLERookie Sony Michel and James White have been dynamic presences in Brady's backfield.Michel needs 119 yards rushing to become just the sixth Patriots running back to reach 1,000 under Belichick, and fourth rookie to do so — joining John Stephens (1988), Curtis Martin (1995) and Robert Edwards (1998). White needs seven catches to become the 10th running back in NFL history with 90 or more in a season.MANY HAPPY RETURNS Jets return specialist Andre Roberts , selected last week for his first Pro Bowl, had a 99-yard kickoff return for a touchdown against the Packers.He's the first player in franchise history — and 16th in the NFL since the merger — with TDs on a catch, kick return and punt return in the same season. He also joined Leon Johnson (1997) as the only players in team history to return a kick and a punt for a score in the same season.