Dolphins fire assistant GM Marvin Allen

Story bySumeet JenaTue, January 13, 2026 at 8:54 PM UTC·2 min readThe Miami Dolphins are clearing house this offseason, and their latest move has just been made. The Dolphins have just fired assistant general manager Marvin Allen, as per Dianna Russini on X. Allen worked as assistant GM since 2019, serving under ex-general manager Chris Grier for his entire tenure with the team. It’s unclear how much influence Allen had on the team, but he was with the team through the entire “Tank for Tua” era, from stripping the team of assets in 2019, to drafting Tua in 2020, hiring McDaniel in 2022, and so on and so forth. AdvertisementAdvertisementAdvertisementThe theme of Miami’s offseason seems to be getting rid of any player, coach, and staff member who worked closely with Grier. Allen is the third member of Grier’s staff to be fired, after co-directors of player personnel Adam Engroff and Anthony Hunt were let go just 10 days after Grier himself was fired in November of 2025. With new general manager Jon-Eric Sullivan now in charge, one of his first orders of business will be filling the holes left behind by Grier’s staff.