From the article:
Of course, Sandoval is not alone in this capacity to ignore the quality of the pitch. Others (in 2014) include Andrelton Simmons (71 wRC+), Elvis Andrus (79 wRC+) (who Gennaro also identified), David Freese (106 wRC+), and Gregor Blanco (107 wRC+).
Bolded parentheses above contain my edits. wRC+ numbers are for 2014 only.
The article is interesting but flawed. The premise is threefold: 1) being affected by pitch quality is a quantifiable ability that affects "hitting". 2) being affected by pitch quality predicts average or better (relative to the player's own regular season performance) playoff performance. 3) Pablo Sandoval is one such player
The problem is that the article doesn't support its premises. Let's start with the first:
Accordingly, for about 90% of hitters, the nastier the pitch is, the worse the hitter will do against it. For most hitters, the relationship isn’t very strong (r~.1), but it is there, and statistically significant. That leaves 10% of hitters who seem insensitive to the quality of the pitch. Dial it up, and they do fine. Throw a 12-to-6 curve painting the black, and they don’t mind.
Statements like the one above are poor support for a relationship between pitch quality and performance. The first problem is stating that the correlation is statistically significant. Statistical significance means that the relationship is likely non-random, it doesn't tell us how big the relationship is (i.e. the size of the effect). The effect size (represented by the correlation coefficient, "r") shown is miniscule. An r of 0.1 indicates that 1 percent of "hitting" performance can be explained by the nastiness of the pitch.
Second, I have no idea what correlation is being calculated here; how is hitter performance being measured? Was the correlation done with OPS, isolated power, contact/whiff rate? How was nastiness measured? Some combination of speed, break and location isn't very informative in and of itself. Without knowing that, such a statement is impossible to interpret and can only be taken at face value. Worse, such statement is less credible because of what the author says in the above paragraph:
For most hitters, pitches that are especially hard-breaking, or fast, or located at the edge of the strike zone, are bad news. On average, for
every mile per hour harder that a pitch is thrown, a hitter is 1% more likely to whiff. This escalates at the extremes of velocity, so that pitches thrown faster than a hundred miles per hour are upwards of 30% likely to be whiffed on. Similar patterns hold for extreme horizontal or vertical breaks, like you might see with Clayton Kershaw’s curveball, and for pitches thrown at the edges of the strike zone.
If the components of "nastiness" show relationships between batter performance and whiff rate, but the combination of the three shows basically no relationship (see the first problem). Then perhaps their formula for combining the three needs to be examined.
Let's assume they get the first one right. The second premise is flawed from the start. Even if pitcher ability is not predictive of a given player's performance, this does not mean that the player will hit better in the playoffs than in the regular season. Many players can be streaky in their performances, and based on Panda's track record (regular season performance range is 96-146 wRC+), it doesn't seem like he's any better. As noted above, 1% of the variance in hitting performance is not a big effect.
I think they have some better evidence that Pablo may be such a hitter, but what they present is better suited to the concept that Pablo is extremely good at making contact, and has no weak locations at the plate. To me, this is both a good thing and bad thing. The fact that Pablo can make contact on the outside part of the plate may mean that he can hit flyballs to the monster and boost his doubles. This line of reasoning comes from an interesting article that Makman posted in another thread. What troubles me is that this suggests that Pablo Sandoval depends on his ability to make contact outside the zone in order to be a productive hitter;
such a skill tends to age rapidly.