The whole "Mario ruined Justin Herbert" argument is so weird to me.
Oregon Stats
2016 (Helfrich's last year) - 19 TDs, 4 INTs, 1,936 yards
2017 (Taggart takes over) - 15 TDs, 5 INTs, 1,983 yards
2018 (Mario takes over) - 29 TDs, 8 INTs, 3,151 yards
2019 (Mario 2nd year) - 32 TDs, 5 INTs, 3,471...