Last month the University of Arizona fired football defensive coordinator Marcel Yates. Yates has been defensive coordinator at Arizona since 2016. Here is a look at the Arizona Wildcats defense during this time period using the Complex Invasion College Football Production Model from the data provided from www.cfbstats.com.
As you can see above, the Arizona Wildcats have had a below average defense in the Football Bowl Subdivision for all four season under Yates. Currently Arizona is the 5th worst defense in all of the FBS.