Zach Arnett resigns as UNLV defensive coordinator, Paul Guenther named interim

Zach Arnett has resigned as the defensive coordinator and linebackers coach of the UNLV Rebels due to personal reasons, as announced by head coach Dan Mullen. Arnett, who was hired just a few months ago in December, cited personal reasons for his departure. Paul Guenther, a former NFL defensive coordinator with extensive experience, will serve as the interim defensive coordinator. The team is currently in the middle of its spring practice schedule, with the sixth of 15 practices taking place shortly after the announcement. Despite having a brief tenure at UNLV, Arnett had previously served as head coach at Mississippi State and spent a season as an analyst at Ole Miss. His resignation has raised questions about the coaching staff's dynamics, especially considering the ties between Arnett and Mullen from their time in Starkville.