There are hundreds of different stats out there , with new ones being invented all the time. In the end , the stat that matters is wins and losses. Some of your pitchers better have good records or you are in trouble. I think it is reasonable to expect your top starters to win games. Look back at who are considered the great pitchers in history. They usually have good win/loss records. You can argue this, that and the other , but I don't see how you can say it is meaningless. As I said before , if the ERA is out of whack with the win/loss record , you should take another look because the win/loss could be a fluke. But to just discount the record makes no sense. Why do teams want their best pitchers in the big games ? Because they want to win.