Arizona head coach Rich Rodriguez has fired defensive coordinator Jeff Casteel and defensive line coach Bill Kirelawich, the school announced.
Both coaches had been on Rodriguez's staff during his days at West Virginia.
Arizona's putrid defense surrendered 463.8 yards per game this season, which ranked 114th in the FBS, and gave up 35.8 points per game, putting them 107th.
The Wildcats finished the season a disappointing 7-6, including a 3-6 mark in the Pac-12. If the team doesn't show significant improvement next season, critics may begin pointing the finger at Rodriguez, whom is a pedestrian 33-20 in four seasons in Tucson, though he did guide Arizona to a Fiesta Bowl berth in 2014.
