FRISCO White Tony Romo Jersey , Texas (AP) — Dallas defensive coordinator Rod Marinelli remembers the night the Cowboys traded up in the second round of the 2014 draft to grab DeMarcus Lawrence because they thought he was the last pass rusher on the board with the skills to become elite.Four years and several significant draft decisions later, Dallas is in line for its highest defensive ranking since 2003, and on the verge of joining that Bill Parcells-coached team as a defense-first playoff qualifier.The Cowboys reversed the offense-dominated formula of quarterback Tony Romo’s era without a sky-high draft pick such as star running back Ezekiel Elliott, the No. 4 overall choice two years ago.Instead, they stuck with their plan in the middle and the end of the first round, and took a number of second-round gambles that are in various stages of paying off.“I just think we’ve been diligent in the way we look at the people we’ve drafted, the movement, the skills, the attitude, the character, hitting,” Marinelli said. “Is it really important to them? We’ve just kind of stayed on course with that. You start seeing it.”The defense kept Dallas afloat in the playoff race while the offense struggled through the first half of the season. Then came a breakthrough performance against New Orleans that’s part of a five-game winning streak. Dallas (8-5) can wrap up the division title with a win at Indianapolis (7-6) on Sunday.Lawrence, the first pass rusher Dallas drafted after releasing franchise sacks leader DeMarcus Ware, was second in the NFL last season with 14 1/2 sacks. He’s unlikely to reach that number again but gets praise across the board for how well he has played following his breakthrough season.Randy Gregory is emerging opposite Lawrence after the Cowboys took a chance on him late in the second round in 2015 despite off-field concerns. He played just one of 32 games the past two seasons because of substance-abuse suspensions but has five sacks in seven games, offset somewhat by some crucial penalties.Dallas took another second-round gamble the next year on linebacker Jaylon Smith, who missed his rookie season recovering from a knee injury sustained in his final game at Notre Dame. After an uneven debut last year, Smith appears to be the middle linebacker of the future now.Leighton Vander Esch was the 19th choice in this year’s draft and has emerged as a star in the absence of 2016 All-Pro Sean Lee , who is close to returning from a hamstring injury.Byron Jones Tony Romo Jersey 2019 , a late first-rounder in 2015, is thriving in a move to cornerback after mostly playing safety his first three seasons. Chidobe Awuzie starts on the other side as a second-round pick last year.Maliek Collins has been solid at defensive tackle as a third-round pick, same as veteran leader and self-described utility lineman Tyrone Crawford four years earlier.“We’ve had to make an emphasis on it, to pick guys,” coach Jason Garrett said. “We’ve selected guys high in the first round, in the second round, in the third round. I think you’re seeing the fruits of those selections over the last few years.”There are a couple of late-round picks in safety Xavier Woods and nickel cornerback Anthony Brown and two undrafted starters in safety Jeff Heath and defensive tackle Antwaun Woods, a third-year player who started training camp as a fourth-stringer in his first year with Dallas.Vander Esch has a chance to be the first rookie to lead the club in tackles since the team’s coaches started tracking the stat in 1981. The Cowboys rank fifth overall and second in scoring defense.“I just feel like we’ve haven’t gone away from the system and what it is and how we’re supposed to run it, how we’re supposed to play,” Crawford said of Marinelli’s ball-swarming style. “As far as being a hustle-style defense and knowing that the star of the defense is the defense, we kind of embrace that.”The Cowboys drafted Vander Esch out of Boise State despite the need for a receiver after releasing franchise career touchdown catch leader Dez Bryant. Their first three picks in 2017 were defensive players.The only high defensive pick whose impact is in question is 2017 first-rounder Taco Charlton, who was a healthy scratch last week against Philadelphia after battling a shoulder injury for several weeks and returning for one game.“You can’t overdo it and get too many. We understand,” Marinelli said of defensive first-round picks. “But I think those first-rounders are guys that can impact the passing game. And the other guys, we’ve got to go make them players.”NOTES: DE Randy Gregory missed practice Thursday for unspecified personal reasons but was expected back Friday. … RG Zack Martin didn’t practice for the second straight day as he battles a recurring left knee injury. The NFL's revision of the catch rule figured to grab the spotlight this season.Then the league altered the regulations on using the helmet when making contact on both sides of the ball, basically making it a 15-yard penalty no matter where on the helmet strikes an opponent. Even players on offense and linemen in the trenches are subject to being flagged, with potential fines and ejections for particularly flagrant hits by lowering the helmet.Players are upset. Officials are deeper under the microscope. Fans are wondering why replay review isn't part of the entire process.Suddenly, the Dez Bryant and Jesse James non-catches are non-issues. It's all about the helmet hits, which unquestionably need to be removed from the game in a similar way that tacklers launching to make hits pretty much has been eliminated in the pros.Here's where things stand from a variety of constituencies as we head toward the kickoff of the 2018 schedule:THE LEAGUENFL executives were encouraged that the flags thrown for helmet-initiated hits dropped from 51 through the opening two weeks of the preseason to nine for Week 3 — when many regulars get on the field White DeMarco Murray Jersey , though in a limited capacity. Officials have been instructed not to flag incidental or inadvertent contacts with the helmet or facemask by defensive or offensive players. The deeper we get into games that count, the better those with the whistle or ball in their hands or the guys attempting tackles will have a handle on what's legal."These are necessary changes where the rules come in," says Troy Vincent, the NFL's football operations chief and one of the hardest hitters in the league when he played defensive back from 1992-2006. "As stewards for the long term, the well-being of the players comes first."Adds Giants owner John Mara, a long-time member of the competition committee that advises rules changes for teams to vote on:"I think officials and players will adapt to the rule, that is what happens every time we have a change based on player safety. There's an outcry at the beginning that it will change the game, and it never works out that way; statistics don't bear that out at all. Players should not lower their heads is what it is all about, and we should not have some of the injuries we have seen."THE OFFICIALSThe rule change has placed the men in stripes in even sharper focus. Simply put, at the current speed of play and with the size and power of players, any call is difficult. Now, a bit more judgment has been added, with decisions made in split seconds."It's still a work in progress because officials need to learn to instinctively read and react to this type of hit that they've never looked at before as a foul," says recently retired referee Terry McAulay, now an analyst for NBC. "So there is going to be some learning curve yet to come, but I think they're in a much better place than they were a week ago."One somewhat puzzling question remains: Why isn't video replay involved when some of these calls, especially if they lead to ejections, can be game changers?Well Dez Bryant Jerseys 2019 , it actually is, on a limited basis. Should a player be ejected for initiating helmet contact, Al Riveron and his staff at New York headquarters can affirm or overrule the ejection."Our charge is, No. 1 player safety: Make it safer in all ways," Riveron says. "No. 2, make sure we still have a product that is entertaining. And No. 3, find a happy balance with replay and how much it gets involved. We always stop the game to get it right."Mara believes replay could play a further role if officiating the rule becomes too problematic."I certainly think are a lot of people who would support adding those calls to instant replay and making them reviewable," he says, "and I think that's another discussion we could have in the offseason if it is warranted."THE DOCTORS AND RESEARCHERSThousands of hours and millions of dollars of data gathering, research, technological innovations and testing helped lead to the new rule. Every penny will have been well spent if usage of the helmet as a weapon disappears."It's an offshoot of all that work," says Jeff Miller, the league's executive vice president of health and safety initiatives, whose department works with medical professionals, researchers and equipment manufacturers. "An identification of what causes concussions and why there was a troubling increase in them."We see patterns, the increased velocity of the hits, the positioning of the head and neck ... that increase in force and magnitude of a hit, and not just with the crown of the helmet."Dr. Allen Sills Cheap Geoff Swaim Youth Jersey , the NFL's medical director, believes all the data helped construct a comprehensive story that required immediate action."Everything we saw said we must act on this," Sills says of the injury rate for helmet-first hits. "There was a sense of urgency when the data was so compelling to do something now on this."THE COACHESFor decades, the head was taught to be part of the tackling process. That has changed 180 degrees — at least in the NFL — as the consequences of that technique became so clearly grim and far-reaching.NFL coaches — yes, even those who don't win with regularity — are the elite of the profession. Still, changing a culture that was part of football for so long, and might still be at lower levels of the sport, is challenging.Throw in that some coaches were caught by surprise by the wide-ranging change, and others aren't truly certain when flags will fly, and there's concern on every NFL sideline.New Titans coach Mike Vrabel, a Super Bowl-winning linebacker, narrated a league-distributed video on tackles that are kosher and which are outlawed. Yet his team was among the most penalized early in the preseason."It's frustrating because I'm not doing a good enough job explaining to them what they're calling," Vrabel said during training camp. "I think they look at me like I'm nuts when I say, 'This is what they're looking for. This is what they're calling.'"We just really have to start watching. The helmet thing extends drives. Penalties are going to lead to scoring opportunities; 15 yards is an explosive gain. ... To continue to give them the 15-yard penalties is frustrating because I have to do a better job of making sure these guys aren't using the top of the helmet."Another worry among coaches is whether the calls on offensive players will be equitable to those on defenders. Former Cardinals coach Bruce Arians, now a CBS analyst, recalled seeing three flags thrown on the defense for helmet-first hits when it was obvious to him that the ball carrier initiated the contact."It's a great rule," he says. "They just have to not over-officiate it. They shouldn't use the posture of getting in a protective position by the running back before he gets tackled, yet he's the one making contact with the helmet."THE PLAYERSUltimately Dallas Cowboys Tyrone Crawford Jersey , as anyone involved in any sport will say, the players have to make the plays. And make sure they are permissible plays.It's not going to be easy at first. According to 49ers cornerback Richard Sherman, it won't be easy ever.Or fair."It's an idiotic rule, so there's no need to go down that road," Sherman says. "There's no way you can tackle and play football. I could tackle like that if I was standing still, got on my knees, no one was moving and I was tackling bags or something. But to ask you to do that at full speed?"Adds Texans safety Tyrann Mathieu: "It's going to be extremely difficult. Obviously, guys are trying to take the initiative to really go about it the right way, but sometimes it's like, what do you expect a guy to do? Hopefully, we'll get it corrected and like I said, hopefully it doesn't take too much money from the guys."I just don't know when it's a foul, when it's clean. I have no idea."