Catch Framing Predictability

Very interesting, and yet not too surprising. If you're getting more strikes called, a pitcher will throw less pitches...

My concerns with pitch framing...

1.) I think it would be interesting to see how the numbers would look if you removed 3-0 and 0-2 counts. 3-0, if it's pretty close, it's a strike. If it's 0-2, that same pitch in the same location is often called a ball.

2.) As much as we want to think that all players have the same strike zone, does it not make sense that someone catching Sam Deduno, Kyle Gibson, Ryan Pressly, other rookies and unproven pitchers will have different strike zones than proven pitchers? It's human nature. I bet Greg Maddux's catchers in his prime had pretty good pitch framing numbers if they had had such things then.

3.) Game situations shouldn't, but likely do, play into it.