Juice's Lecture Notes wrote:
Can you define that in any meaningful way without self-referencing the words "pitch", "throw", or "ballgame"?
You threw this out there when we were being chippy with each other last night. I've had some time to think about it. The things you're using to conclude that Vazquez was better than Buehrle are components of performance rather than performance itself. Isolating the pitcher's performance can be useful for making reasonable prediction of better performance in the future, although it's certainly no guarantee.
As far as FIP or DIPS or whatever you want to call it is concerned, the problem is that I don't believe a guy who gives up seven straight gap doubles and then strikes out the side is better than a guy who gets three grounders to the shortstop but he just got unlucky while the other guy was lucky. And yeah, I know there have been attempts to refine the stats taking into consideration types of batted balls.
I think the major issue is the importance of location and the inability to measure a man's efficiency at throwing to a certain spot. First, we don't know where he is trying to throw the ball. And second, even if we did, he may have made a bad choice. We can see from their results that guys like Buerhle and Maddux who lacked overwhelming "stuff" must have had good game plans and executed those gameplans well. When we look at the ability to strike guys out at an extremely high rate, that's something that's difficult to do without that big pitch. A guy like Javy Vazquez doesn't need perfect location to strike guys out. And he doesn't have the ability to locate that Buehrle does, let alone Greg Maddux. And so, he has certain numbers that look good, but they ultimately don't translate into great performances. And that isn't because he's unlucky.
We could look at two young guys pitching in Chicago right now. I'm sure if I looked I could set up a better example, a closer parallel to Buehrle/Vazquez, but I know these guys off the top of my head. I'm talking about Hendricks and Rodon. It isn't a perfect comp because some of those isolated "controllable" numbers of Hendricks are better than Rodon's, largely because of Rodon's inability to locate. But we can break the game down as far as we want. We can look at contact on their fastballs. Contact on their best breaking pitch, etc. Undoubtedly Rodon wins those categories. But he just isn't a better pitcher. Not now. Maybe he will be. He certainly has a toolbox that suggests he should be. And Hendricks has to be precise in his location or he'll get killed. But he's shown he can be precise enough often. Of course, anyone would take Rodon, but if each man keeps doing what he is doing until their careers are as longs as Buehrle's and Vazquez's, it would be silly to say Rodon was better.