Too much and you become a tinker man. I personally like to see a steady settled side.
Butler isn’t shy about mixing in up and I think more often than not he gets it right.
As Butler is a fitness freak he seems to have a good appreciation on recovery time and energy levels.
I like to think it isn’t all data driven and there is some common sense. The players should know what they feel capable of. It could lead to being too risk averse.
