FRISCO, Texas — Quinnen Williams is a week from his first regular-season game as a full-time Dallas Cowboys starter, and the defense he is walking into is not the one he was traded to last November. Dallas allowed more points than any team in the NFL in 2025, fired defensive coordinator Matt Eberflus and replaced him with Christian Parker, who was the Philadelphia Eagles‘ defensive backs coach.
Williams has spent camp lined up across from what he called one of the best offenses, offensive lines and quarterbacks in the league.
“The growth, man. It’s like night and day,” Williams said. “Starting in OTAs, starting the first week of training camp, getting a chance, going against one of the best offenses in battle every single day has helped us tremendously. Mindset coming from the coaches top down to the players and to the leadership has been drastically changed. It’s just fun, man. I just can’t wait to see the process and the results from all the hard work. So we’re not done yet. We’ve got some fine-tuning things to do, some detailed work to do, and to continue to trust the process and get better every day.”
Parker was hired in February and built out his own defensive staff. He has said the unit will be a 3-4 by nature with 4-3 spacing and a 4-2-5 nickel package.
Williams spent his first seven-plus seasons with the New York Jets, who went 33-75 over that stretch. Dallas acquired him at the 2025 trade deadline for a 2027 first-round pick, a 2026 second-round pick and defensive tackle Mazi Smith. He played 275 defensive snaps in seven games for the Cowboys, 65% of the team’s total.
Quinnen Williams On Building Chemistry With Kenny Clark
Williams said the defense has used the offense as a tool to raise its own urgency.
“I think it’s just every day, man, every day working, every day getting better with each other, learning and growing,” Williams explained. “He’s a phenomenal player from the beginning. His whole career has been great. And I feel like I’m a good player also. So getting a chance to learn from each other and grow from each other and continue to push each other and grow every day, not only just me and him, but the whole defense and tackle room.”
“So it’s been a great journey. It’s been fun,” Williams continued. “Out at Oxnard and now I’m back in Dallas. It’s been cool. Get a chance to really fine-tune some things and really detail some things and get ready for this journey to start.”
Kenny Clark is entering his 11th season and came to Dallas from the Green Bay Packers in the August 2025 trade that sent Micah Parsons to Green Bay. He and Williams headline an interior group that also carries Otito Ogbonnia, Jonathan Bullard and fourth-round rookie L.T. Overton.
Williams signed a three-year, $105.9 million extension on Aug. 10 that runs through 2030 and includes $101 million in guarantees. The $35.3 million average is second among defensive tackles.
Quinnen Williams On The Level Of Dallas Cowboys Camp Competition
Williams said the daily work against the Dallas offense has helped the defense tremendously.
“For sure, man. The last time I kind of felt this was when I was at Bama,” Williams said. “When it comes down to you going against first-rounders across from you, but here in the NFL, there’s all pros everywhere. Getting a chance to go against one of the best offenses in the league and one of the best quarterbacks in the league. Got one of the best offensive lines in the league. So using them as a helping tool, especially as a defense, to get better every single day and the urgency level from a defensive standpoint to get better every single day. So it’s been well needed. It’s been fun. It’s been definitely a battle.”
Dallas held the first three weeks of camp in Oxnard, California, then moved practices to The Star in Frisco. The Cowboys went 7-9-1 last season and missed the playoffs for the second straight year.
In his seven games with Dallas last season, Williams had 21 tackles, three tackles for loss, 1.5 sacks and an interception. The Cowboys won their first three games after the trade before a 44-30 loss at Detroit on Dec. 4 started a run of four losses in five games.
Dallas rebuilt the front around him over the offseason, trading for Rashan Gary and signing Von Miller to a one-year deal on Aug. 16.
Williams made his fourth consecutive Pro Bowl in 2025. He was a First-team All-Pro in 2022 and finished seventh in Defensive Player of the Year voting that season.
Dallas opens the regular season Sunday, Sept. 13, at the New York Giants. Kickoff is set for 7:20 p.m. CT on NBC.
