Raiders defensive coordinator Jason Garrett is expected to be named the next head coach of the team on Tuesday, according to a source familiar with the situation.
The Raiders announced Monday that Garrett had been promoted to assistant defensive coordinator, replacing Rod Marinelli.
Garrett has spent the past two seasons as the defensive coordinator at Miami and is widely viewed as a frontrunner for the Raiders’ head coaching position.
He has not been hired by the team since 2013.
Gardner was hired as the interim head coach in 2016.
He is a former linebacker coach at Miami who has been an assistant for the Miami Dolphins’ defense since 2013, but had been out of the league since that time.
Gretton is the second assistant coach to be brought back in as the Raiders prepare for a season opener against the New York Giants.
That job is currently held by offensive coordinator Jeff Fisher, who left for the Los Angeles Rams.
The hiring of Garrett comes after a number of notable departures from the Raiders organization during the last few years.
Defensive coordinator Keith Butler and receivers coach David Carr were both fired this offseason, along with defensive backs coach Jim Tomsula and defensive backs director of player personnel Chris Rumph.