Sean McDermott will call defensive plays for Bills
10 NFL playoff teams are integrating new play-callers, either out of need or to add a spark for 2023 - ABC News
Is a defensive shift imminent with Buffalo Bills HC Sean McDermott? - Buffalo Rumblings
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Sean McDermott on the spot as Bills' defensive play-caller
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How will Sean McDermott being HC and DC impact Bills' Super Bowl chances?