The Miami Dolphins entered 2026 with the NFL’s youngest roster, averaging 25.3 years and with about 47 percent of players aged 22 to 24, signaling a deliberate rebuild under GM Jon-Eric Sullivan and coach Jeff Hafley focused on long-term development over immediate wins. While this youth movement may bring early struggles, the plan centers on building a durable culture, discipline, and a solid foundation for future success.

Sports· Aug 30, 2026

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Jeff Hafley

Entrenador de fútbol americano

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JJeff Hafley· Sports · 7 sources · Aug 30, 2026Story

Dolphins field NFL's youngest roster as Miami bets on future over wins

Sports· Aug 30, 2026

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About Jeff Hafley

Jeffrey Michael Hafley es un entrenador profesional de fútbol americano estadounidense y ex receptor abierto que es el entrenador en jefe de los Miami Dolphins de la National Football League (NFL). Anteriormente se desempeñó como entrenador en jefe en Boston College de 2020 a 2023. Jugó fútbol americano universitario en Siena University de 1997 a 2000.

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Occupation: coach, American football coach
Citizenship: United States
Born: April 4, 1979

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Jeff Hafley across IJR

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