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Dolphins President Garfinkel Steps Down, Sillman Named CEO

8/5/2026

31 5 Full Breakdown

Summary

Story summary

Tom Garfinkel stepped down as Dolphins president after 13 years.
Garfinkel will remain vice chairman of the Dolphins and a Grand Prix partner.
Stephen M. Ross created Ross Sports & Entertainment, merging five Miami ventures, and named Daniel Sillman CEO of the new entity.
Sillman will oversee Dolphins football operations and report to head coach Jeff Hafley.
GM Jon-Eric Sullivan and EVP Brandon Shore will report directly to Sillman.

History

Historical Context

In February 2008 Stephen M. Ross bought 50% of the Miami Dolphins and half of Dolphin Stadium for $550 million, completing a $1.1 billion purchase in January 2009 and gaining 95% control. He later funded a $500 million stadium overhaul in 2015, consolidating ownership and media strategy. Garfinkel’s resignation and Daniel Sillman’s promotion echo that centralization, tightening corporate governance of the franchise.

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Story summary

Tom Garfinkel stepped down as Dolphins president after 13 years.
Garfinkel will remain vice chairman of the Dolphins and a Grand Prix partner.
Stephen M. Ross created Ross Sports & Entertainment, merging five Miami ventures, and named Daniel Sillman CEO of the new entity.
Sillman will oversee Dolphins football operations and report to head coach Jeff Hafley.
GM Jon-Eric Sullivan and EVP Brandon Shore will report directly to Sillman.

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