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.
I've been wracking my brain to work a "Room With a View" reference in there but I just haven't gotten it to work.
Bryant might be playing SS during an infield shift, no? Usually he is moved to 2B but it could happen.
I won't really be happy until I see Bryant at shortstop.
Yeah, Underwood impresses the internet scouts more than the opposing hitters. Blackburn and Williams have pitched well but they would be more interesting if they missed more bats.
Myrtle Beach has a couple of guys--Trevor Clifton and Jake Stinnett--worth keeping an eye on.
South Bend has the best record in the Midwest League but it's more about their bats than their starting pitching.
Thanks Steve, I always forget about that.
Maddon spins the wheel-o-lineups and Bryant is playing 1B.
The line-ups, by the way, appear in the Twitter box on the left and usually very soon after they are made available.
Looks like no Heyward or Rizzo in the lineup today.
HAGSAG: Kevonte Mitchell has shown some improvement in 2016. He takes a lot of walks, shows occasional power, and he's an athletic defender capable of making the big play in the OF.
However, he strikes out way too much, he doesn't always take the most-direct-route to get to balls hit into the air, and he sometimes runs himself into outs on the bases. He is still very raw.
E-MAN: I don't think Dallas Beeler has a long-term future with the Cubs, but (when healthy) he has gotten the call over the past couple of years as the "26th man" when the Cubs needed an extra starter in a doubleheader.
PHIL: Thanks for the wrap. A 2010 early-ish round Hendry draft pick, why do you surmise the new management team just doesn't cut bait on Beeler? Not shown that much as a starter. Does he have a power arm when right? Is he another Schlitter? Or, is he rosyer filler while the org waits out the lower-level arms to surpass him?
Ryan Kellogg is still a fringy prospect despite being very old for low-A. He's putting up very good numbers no matter who he's facihg.
Great article on Yosh and Nobe. Thanks for including it Trans.
Phil, it looks like Kevonte Mitchell has made some progress this Spring. Your thoughts please, thanks.
so far ryan williams (AAA) is the only system prospect on the "could be ready soon" horizon doing well...that said, he's not very exciting and he's assumed to be an end-rotation talent at best.
paul blackburn is getting great early returns in AA, but he's getting surprisingly low K numbers doing it. he throws lot of low/sinking stuff with good control...also assumed to be an end-rotation guy, but he's got room to be better, especially given his control as base to build on.
Speaking of pitching -- another ugly outing for Underwood at AA. Through 6 starts: 5.19 ERA, WHIP 1.69. Yikes!
Man, do we need starting pitching depth. Our best hopes are still hanging with AZ Phil in Arizona. Very scary.
jeebus... that's terrible.