The announcement comes on the same day that Koetter was officially introduced as the team’s head coach.
Smith, who was fired by the Falcons last December after seven seasons at the team’s helm, had a 66–46 record in his tenure in Atlanta, including a 1–4 mark in the playoffs. The Falcons did, however, reach the NFC championship game with Smith as head coach in 2012.
Prior to his time with the Falcons, Smith served as the defensive coordinator for the Jacksonville Jaguars from 2003–07. Before that, he coached in multiple capacities with the Baltimore Ravens from 1999–2002.
Koetter previously served as the Bucs’ offensive coordinator in 2015, after spending the last eight seasons as the offensive coordinator of the Falcons and Jaguars.