They have added new statistics, such as WAR, wins above replacement, which was supposed to measure a player’s value compared to other players , as I understand it.
I have not kept up with how you calculate these new statistics that they talk about. I don’t understand the significance of those stats.
Now a pitcher has to be in for 3 batters, pitch clock, rules on where you place fielders, base runner at second in extra innings, Unbalanced schedules, designated hitters, etc.