Chelsea’s 2018/19 season vs Chelsea’s 2019/20 season. One was thrown out of the club while the other is “one of the best managers in the league”.

2018/19
Carabao Cup - Lost final
FA Cup - 5th Round
Europe - Winner

2019/20
Carabao Cup - Round of 16
FA Cup - Lost final
Europe - Probaly going to be eliminated at the round of 16
Super Cup - Lost final

2018/19
Wins - 41
Draws - 11
Losses - 11

2019/20
Wins - 29
Draws - 8
Losses - 17

End of thread to be honest. That says it all