Klopp learned the hard way his first two seasons. He played with his best team all the time and ran out of gas. He tried to play reserves/youth in cups and play the best team in the league ... A bit better but still ran out of gas after Christmas.
Now he is the manager that rotates the most, by a mile. And you can judge by yourself if he has fared worse or better, as a whole.
I will end this post with my favourite Einstein quote : "The definition of madness is doing the same thing over and over again, expecting different results".
He doesnt rotate VVD and Salah in premier games they ger injured they are fcuked.