I could say the same for you using ERA in 2022, Mr. "I just got here but I already know more than everybody else". And I've read the article. It does recognize that that xFIP and SIERA are more predictive stats, but it also doesn't say that they shouldn't be used in evaluating performance. In fact, one of the reasons why they are so useful is because they remove from consideration things that are out of a pitcher's control, like a higher than league average HR/FB rate which is responsible for a lot of Burnes' increase in ERA and FIP this year. Even then, I provided you more than just xFIP and SIERA, like K-BB%, CSW%, etc.. But you do you....