Soriano by the Pitches
Hoping to understand Alfonso Soriano's hot and cold streaks this year, I turned to the incomparable Fan Graphs to break down his present and historical success against different pitches. The results suggest that Soriano is losing the skill that made him one of the more feared hitters in the game, but that he might have found a method to compensate for this loss. Below is a chart showing the percentage of fastballs Soriano has seen each year since 2005, with 2009 broken down per month. It also shows his ranking among hitters seeing the fewest fastballs, his "runs above average" number on fastballs, (wFastball) and how high he ranks among all hitters, and his overall OPS. (As in, not specific to fastballs) The most important thing to notice here is his wFB rank.
|Date||Fastball%||FB% Rank||wFastball||wFB Rank||OPS|
You probably have noticed a couple of striking trends going on here. First, Soriano has progressively moved from being one of the most effective hitters in baseball against the fastball to being quite pedestrian. Second, pitchers have not noticed and adapted to this change: They contiue to avoid throwing fastballs to Soriano as if he were the same hitter he was in 2005. He's not.
So how do we explain Soriano's April and July, when he hit like the hitter for whom the Cubs offered that premium contract?
Finding that answer requres looking at Soriano's results swinging at sliders.
|Date||Slider %||SL % Rank||wSlider||wSL Rank||OPS|
It makes sense that if pitchers fear Soriano's ability to hit the fastball, they would throw him an inordinate number of sliders, and indeed the table indicates Soriano consistently sees among the most sliders in the game. Throughout his career Soriano has proven to be one of the weaker hitters against sliders.
This potentially could be a toxic combination: A fastball hitter who no longer can hit fastballs, and still doesn't see any fastballs to boot. But then look at the two months this year that Soriano has hit: April and July. The numbers indicate that Soriano's output isn't due to hitting fastballs with the authority to which he is accustomed; instead he's hitting sliders in a way that he previously did not. Well.
Of course, other factors might be at work as well, but if so I have yet to find an obvious candidate. Such marked changes do not appear when looking at Soriano's results against other pitch types. Neither does plate discipline seem to be the issue. Soriano is both swinging at fewer pitches outside of the strikezone this year, and making more contact when he does swing - both at pitches inside and out of the zone, and it shows no meaningful fluctuation from month to month in 2009. His BABIP shows severe fluctuations from month to month, but that appears to be driven by corresponding changes in his line-drive percentage, so there's nothing unusual there.
Assuming that these stats do reveal a truth about the real world (I know, I know), there are several questions to consider going forward. Most obvious, what is the cause behind Soriano's diminish returns against fastballs? Is it that he now has a "slider speed bat"? Is it a matter of approach at the plate, where he has stopped guessing fastball in order to better hit the breaking stuff? The latter can be fixed, the former, not so much. Looking at how consistent the downward trend is, my hunch is that it's the former, a slow erosion in the speed of his bat. If it's the former, and Soriano is losing some quickness in the swing, will we see him move away from his preference for heavy bats? And will he be able to compensate by consistently hitting sliders with the results found in April and July? Then, there are questions concerning how pitchers resond. At what point will pitchers adjust to the fact that Soriano does not hit fastballs with the authority he once did, and adjust their pitch selection? There may be a lot riding on these questions.
Update: I was unaware of it as I wrote, but less than a month ago R.J. Anderson at Fan Graphs wrote about how few fastballs Soriano sees. He doesn't mention either Soriano's historical trend of diminishing results on the fastball, or the weird fluctuations this year on the sliders; instead he reaffirms the notion that Soriano is a good fastball hitter and the problem is in the dearth of fastballs he sees. I think he may be wrong there, but I should at least try to be a good scholar and cite the work.
2nd in defensive WAR, NL.
6th in NL in RBI
Go complain about something else, like, "they never play good against the good teams", or some other shit.
Addy really has trouble breaking through .250 BA -- after his hot streak got him to .251, he has gone 1-for-17.
Thank goodness for Jansen's 2 WP on Friday -- otherwise this would have been a sweep.
There seems to be a direct correlation with overconfidence in the Cubs offense against mediocre/young pitchers and really poor offense against mediocre/young pitchers. So, let's fear the Pirate pitchers!
Rizzo due for a power surge -- one HR in August so far. He truly does hit them in bunches.
Sometimes I'm not as supportive of Cahill as maybe I should be. There, I said it.
Rough 8th inning all around -- HBP, Cahill error, Javy's poor decision.
Oh well - given that the Cubs didn't look like they were going to score, it's better to lose in 9 innings, save the bullpen and get changed for the PJ trip home.
Baez still learning
heyward with his 3rd multi-hit game since the all-star break (all in august)...2nd in the past 3 games during his 7 game hitting streak.
he's gone from flirting with a sub-.300 ob% to nearing .310 ob% in 3 games (1 game was just a 1 for 1 pinch hit appearance). all 5 hits in the past 3 games have come in a row...neat.
stewart with 7Ks through 3ip...of course.
that 10-13 mph difference in his fastball/change is working today...and they're swinging at his crappy slider.
brock stewart...steven brault...fun times for the cubs hitters vs allegedly competitive teams...maybe.
Maddon would have started three lefties against the Dodgers, Montgomery, Zastryzny and Lester, except that he doesn't have the juice to do that. No manager does. Maddon has a boss, Epstein (and probably Hoyer, too), who gave him a starting rotation of five guys including Hammel. Maddon was asked yesterday about the starting group for next year and basically said, Not my call, that's why I drive away in my RV in the summer and occasionally check in, etc.
video of Maddon.
always nice that he actually tries to honestly answer questions. Does mention that he wanted to give Zastr? a chance in a meaningful spot rather than a mop-up role.
#Cubs Maddon: "I'm not going to make up an excuse for why I did what I did. It has nothing to do with lack of confidence" ... "It was the right thing to do today based on what I saw, what their lineup looked like and Rob Z.'s availability." #Cubs
Hammel not particularly understanding of getting pulled out...as he should. Be curious what Maddon had to say. All I can think of is is keeping arms fresh and maybe wanting to see if Zastr? is worth considering for the playoffs and how he'd do against the Dodgers.
Heyward, Russell, Baez, Bryant, Ross in particular...although Bryant's a bit hard to judge with all the positions.
Fowler and Rizzo in the top half of the NL for their positions as well (per fangraphs)...Zobrist right at the halfway cutoff for 2b in the NL.
I'm sure some luck is involved too, but the Cubs and Maddon knew what they were doing.