Cowboys head coach Mike McCarthy and new defensive coordinator Christian Parker announced the switch to a 3‑4 base defense for the 2026 season. The move marks the first time the team has used a 3‑4 front since 2012, when Rob Ryan last employed the scheme.
The Cowboys have historically favored a 4‑3 defense, winning all five of their Super Bowls with that alignment. Parker said the 3‑4 will allow the unit to be more multiple and adaptable, with 4‑3 spacing and nickel variations as needed.