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2h ago

Dolphins Hire Packers Assistant Sean Duggan as Defensive Coordinator

Hafley, not Duggan, will call defensive plays in a continuity-focused staff build.

Oct 30, 2025; Miami Gardens, Florida, USA; The Miami Dolphins logo is seen at midfield prior to a game against the Baltimore Ravens at Hard Rock Stadium. Mandatory Credit: Nathan Ray Seebeck-Imagn Images
Head coach Raheem Morris of the Atlanta Falcons and head coach Kyle Shanahan of the San Francisco 49ers shake hands after the game at Levi’s Stadium on Oct. 19, 2025, in Santa Clara, Calif.
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Overview

  • Multiple outlets reported the Dolphins are bringing in Packers linebackers coach Sean Duggan, 32, to hold the defensive coordinator title under new head coach Jeff Hafley.
  • Hafley previously said he will run the defensive play-calling, defining Duggan’s role as coordinator without the headset duties.
  • Duggan reunites with Hafley after prior stops together at Ohio State, Boston College and Green Bay, making him one of the NFL’s youngest coordinators.
  • Miami is mixing carryover and imports, retaining linebackers coach Joe Barry on a new multi-year deal and defensive line coach Austin Clark, and adding former Packers figures including GM Jon‑Eric Sullivan, QB coach Nathaniel Hackett, DBs coach Ryan Downard and assistant Wendel Davis.
  • The move comes as the coaching carousel turns leaguewide, with the Packers naming former Cardinals head coach Jonathan Gannon as Hafley’s successor at defensive coordinator.