Denver Broncos Name Former UNC Safety Greg Williams as Defensive Backs Coach Posted Jan 10, 2018 The Broncos have named Greg Williams as Defensive Backs Coach, the team announced Wednesday. Williams arrives in Denver with nine years of NFL coaching experience and 15 years of coaching experience overall. He spent the last two seasons as the Colts' defensive backs coach. Williams was a wide receiver and defensive back at the University of North Carolina from 1994-97. (Denver Broncos)