Bullen was one of the few in-house Giants assistants Harbaugh retained, and he previously served as the team’s interim defensive coordinator in 2025 after Shane Bowen was fired. He has also interviewed for the Cowboys’ DC position, keeping him in the mix for high-level defensive roles this offseason.
Harbaugh’s initial staffing moves included bringing in Matt Nagy as offensive coordinator after Todd Monken left to become Browns head coach, and naming Dennard Wilson as the defensive coordinator. Bullen was among several notable candidates considered for the DC role, but ultimately did not secure the promotion in New York.
If Bullen heads to Arizona, the move would represent another significant staffing shift for the Giants. His familiarity with the defensive system and his prior Arizona stint could give him a distinct advantage in this DC pursue, and the Giants would need to assess replacements or further tweaks to Harbaugh’s revamped staff.
Arizona’s coaching changes, including the recent hire of Mike LaFleur as head coach, add another layer to the swirling decisions around Bullen’s future. The Giants have also been reshaped on the front office front, with Dawn Aponte joining the organization, signaling continued turnover as Harbaugh builds his staff.
Giants observers will watch closely to see whether Bullen remains with New York or joins Arizona. The situation underscores how quickly the 2026 offseason has evolved for the Giants, with coaching, front office moves, and potential departures all contributing to a shifting landscape.
