Tucker coached on National Football League staffs for nine seasons before being hired by Alabama as associate head coach and defensive backs coach in 2015.
Steele, 59, has directed Auburn's defense the past two seasons, after previously working as an assistant at LSU, Alabama, Clemson and Florida State. He went on to coach at Nebraska, the Carolina Panthers, and Baylor before he coached at Florida State and Alabama. He played linebacker at Tennessee in 1978-79.
Jeremy Pruitt is now serving as the defensive coordinator at Alabama under Nick Saban, while he's only been in that positon since 2016 it's not his first stint with the Crimson Tide. Pruitt is also regarded as one of the top recruiters in the SEC.
Pruitt's playing career as a defensive back was split between MTSU (1993-1994) and Alabama (1995-1996).
The two DCs will have second-round interviews with Fulmer Tuesday in New York, ESPN.com reported, citing sources.
Tennessee's search for a new head football coach continues, this time under the guidance of Phillip Fulmer. It was important for Tennessee's coaching search to hit the restart button.
Auburn, which lost to Georgia in the SEC championship game, will face UCF in the Chick-fil-A Peach Bowl that same day in a New Year's Six game.