The pass efficiency defense rankings (much better indicator) look similar. They improved all three years under Diaz the DC. Including first in the nation in 2018. They got worse the two years under Baker.
Passing Yards Allowed:
2016 - 2017 (Diaz) 47th in the Nation
2017 - 2018 (Diaz) 56th in the Nation
2018 - 2019 (Diaz) 1st in the Nation
2019 - 2020 (Baker) 18th in the Nation
2020 - 2021 (Baker) 65th in the Nation
PY/Completion
2016 - 2017 (Diaz) 6th in the Nation
2017 - 2018 (Diaz) 16th in the Nation
2018 - 2019 (Diaz) 15th in the Nation
2019 - 2020 (Baker) 72nd in the Nation
2020 - 2021 (Baker) 15th in the Nation
Rushing Defense:
2016 - 2017 (Diaz) 26th in the Nation
2017 - 2018 (Diaz) 43rd in the Nation
2018 - 2019 (Diaz) 42nd in the Nation
2019 - 2020 (Baker) 17th in the Nation
2020 - 2021 (Baker) 76th in the Nation
RY/Attempt:
2016 - 2017 (Diaz) 18th in the Nation
2017 - 2018 (Diaz) 23rd in the Nation
2018 - 2019 (Diaz) 23rd in the Nation
2019 - 2020 (Baker) 11th in the Nation
2020 - 2021 (Baker) 81st in the Nation
TFL:
2016 - 2017 (Diaz) 5th in the Nation
2017 - 2018 (Diaz) 4th in the Nation
2018- 2019 (Diaz) 1st in the Nation
2019 - 2020 (Baker) T-4th in the Nation
2020 - 2021 (Baker) 4th in the Nation
Sacks:
2016 - 2017 (Diaz) 22nd in the Nation
2017- 2018 (Diaz) 1st in the Nation
2018 - 2019 (Diaz) 9th in the Nation
2019 - 2020 (Baker) 6th in the Nation
2020 - 2021 (Baker) 32nd in the Nation
Total Def:
2016 - 2017 (Diaz) 20th in the Nation
2017 - 2018 (Diaz) 38th in the Nation
2018 - 2019 (Diaz) 4th in the Nation
2019 - 2020 (Baker) 13th in the Nation
2020 - 2021 (Baker) 67th in the Nation
Take from this what u want; however if u do the avg of both DCs from their 1st two yrs, Diaz has Blake beat in some categories & vise versa. The notion of getting better every yr under Diaz is not true. The outlier, which allowed Diaz to con his way to being HC was yr 3. I broke yr 3 down in another thread, and the level of incompetent offenses we faced in the 2018-2019 season makes The Washington Generals blush.
Both DCs had some set backs as 2nd yr DCs, it’s just that Baker’s step back was greater.