One is Jason Simmons, a former Steelers defensive back who a league source confirmed has interviewed with McCarthy. Simmons, according to ESPN, is expected to join the Steelers’ staff in “a prominent defensive role.” Houston’s KPRC-TV termed Simmons’ hire “a done deal,” though his exact title remains unclear. The Steelers have not had that position in the past but could be expanding their staff under the veteran coach McCarthy. The news regarding Simmons comes on the heels of national reports that Patrick Graham is a heavy favorite to be hired as defensive coordinator. The Steelers are not expected to formally announce or introduce assistant coach hires until the entire staff is put together.