This isn't what I was looking for from Law, but it's something: BK (Mpls) You've moved me to become a believer in advanced metrics. My only concern is that the advanced metrics seem to be based solely on individual performance. As an avid fan, I still see the importance of RBI and Wins solely because in the end, baseball is a team sport. Klaw (1:34 PM) Team wins matter, but pitcher wins are useless if we're talking about how the pitcher performed. Again, just look at Felix Hernandez this year. Chris (Falmouth) Can you explain why RBI is considered an archaic stat and what are the stats that should be paid more attention too? Klaw (1:29 PM) Your RBI total is a function of who hits in front of you - if you have more guys on base when you bat, you get more RBI opportunities. If you want to get a picture of an individual player's actual contribution to his team, you need to use stats that are just a function of his performance, not his teammates'. Among basic stats OBP and SLG are more useful than AVG or raw RBI totals, and there are advanced stats like wOBA and WAR (which includes fielding, but not always the same metrics) that give a more complete picture. Jonathan (Wilimington) Don't you think you've gone more or less completely overboard by saying the RBI is meaningless? It's not like saying W-L's are meaningless for a pitcher (which I agree with). RBI's are only meaningless as stats in the sense that they are susceptible to hitters having fluke years, both good and bad, and hence are not a true barometer of success. However, of course if someone like Cabrera, Pujols or Votto have a lot of RBI's it still speaks of their hitting prowess. Yes? Klaw (1:38 PM) What do RBI tell us that a basic stat like SLG doesn't? I'll answer: RBI tell us that they hit behind guys who got on base a lot for them. Not useful information. Chris (Dallas, TX) re: RBI. I think people freak out about saying they are "meaningless" because it implies the act of driving in a run is meaningless. Of course driving in runs is important, it is just not indicitave of a particular skill. That about sum it up? Klaw (1:43 PM) That's pretty good. mike (woodridge) isn't the difference that early baseball statistics, such as wins and rbi, were focused on describing the events that determined the outcome of the game, whereas modern statistics is focused on events that are best fit to predict the outcome of future games? a difference between describing the past and predicting the future? Klaw (1:49 PM) I've never heard that before. Makes a lot of sense. I think the modern stats are also about isolating individual performance. Gus (NY) Greinke's ERA is phenomenal, but he only has 13 W's. Mo hasn't given up a run since April in many more pressure situations. Keith Law (1:24 PM) You have officially failed this chat. Report to Remedial Baseball immediately. First lesson: Why Wins are the worst measure of a starter's performance.