The Andrew Bailey trade is now a few days old and I thought it would be good to delve into the statistical breakdown of the Red Sox new closer.
First and foremost, I really like this move by Ben Cherington. He entered into tough negotiations with a skilled GM in Billy Beane who was clearly asking for more than he got in exchange for his star closer. Early reports had the A's GM seeking Reddick, a young starter and one of the Sox top prospects in Will Middlebrooks, who will be the Sox starting 3rd Baseman by the 2014 season if all goes as planned. With the injury history of Andrew Bailey this seemed to be a bit much and the waiting game helped Cherington in this deal tremendously. Beane had several players on the market including Gio Gonzalez and Trevor Cahill, both of whom are former All-Star starting pitchers. If these two starters are still on the A's roster their chances of pulling a "MoneyBall" 2002 season are greatly increased and the need for Bailey in an A's uniform follows the same pattern. However the last thing a rebuilding team needs is relief pitching let alone a closer. After all what good is it to have a guy whom can yield you prospects pitch the 9th inning of games that you will most likely be losing 75% of the time? Once the deals for Cahill and Gonzalez were made, Bailey became significantly less valuable to the A's. What also helped matters was the fact that this was a very rich Closer's Market in Hot Stove baseball and pitchers such as Ryan Madson were still readily available if the Sox had to go down that road. In essence Bailey was traded for two very young and unproven prospects in Raul Alcantara and Miles Head. I wouldn't exactly say that the Red Sox robbed the A's in this deal yet, but if Bailey is able to pitch to his capabilities and Sweeney helps out the Sox in any way shape or form, then a steal is a steal is a steal.
And now on to the ins/outs of Andrew Bailey.
Andrew Bailey is slated to fill a serious void in the Red Sox bullpen and has saved 75 games over the past 3 seasons but he is leaving the cavernous confines of Oakland Coliseum to the hitter friendly ballpark in the Fenway District of Boston. So let's first look at his Home/Road breakdowns during his career.
There are two stats categories below that some of you may not be familiar with, so I've decided to give some definitions to them. All of the stats and definitions have been calculated by the immensely talented people over at FanGraphs. If you are as much of a stats fanatic as I am then I highly recommend stopping by their site. The forums are amazing and the Bill James breakdowns are better than anything you will hear come out of Buster Olney or Peter Gammons mouth's all season.
1) FIP-
Fielding Independent Pitching (FIP) measures what a player’s ERA should have looked like over a give time period, assuming that performance on balls in play and timing were league average. Back in the early 2000s, research by Voros McCracken revealed that the amount of balls that fall in for hits against pitchers do not correlate well across seasons. In other words, pitchers have little control over balls in play, so a better way to assess a pitcher’s talent level is by looking at things a pitcher can control: strikeouts, walks, hit by pitches, and home-runs.
Obviously, a walk is not as hurtful as a home-run and a strikeout has less impact than both. FIP accounts for these differences, and presents results on the same scale as ERA. It has been proven to be much more effective than ERA at predicting future performance, and has become a mainstay in saber-metric analysis.
2) xFIP- Expected Fielding Independent Pitching (xFIP) is a regressed version of FIP, developed by Dave Studeman from The Hardball Times. It’s calculated exactly the same as FIP, except it replaces a pitcher’s home-run rate with the league-average rate (10.6% HR/FB) since pitcher home-run rates have been shown to be very unstable over time. A pitcher may allow a home-runs on 12% of their fly-balls one year, yet then turn around and only allow 7% the next year. Home-run rates can be very difficult to predict, so xFIP attempts to correct for that.
Along with FIP, xFIP is one of the best metrics at predicting a pitcher’s future performance.
HOME/ROAD SPLITS
| Andrew Bailey | K/9 | BB/9 | HR/9 | ERA | FIP | xFIP | LOB% |
|---|---|---|---|---|---|---|---|
| HOME | 10.45 | 1.87 | 0.39 | 2.17 | 1.94 | 2.61 | 74.6% |
| AWAY | 7.4 | 3.27 | 0.76 | 1.96 | 3.62 | 4.27 | 88.2% |
Looking at the above table we can see that his ERA holds up pretty well on the road, but his numbers in regards to FIP and xFIP are almost doubled. The K/BB ratio is somewhat alarming as well. We all know that walks are very damaging in the 9th and I am certainly hoping that Bailey's Home breakdowns stays consistent with his career numbers even at Fenway. Pitchers are almost always better at home, especially when they get used to the backdrop behind the catcher as well as getting more acclimated with their own mound.
The real area of concern to look at would be his GB/FB% or ground balls to fly balls %. The MLB average for ground ball percentage is 44%. This is the number of balls put in play that result in a ground-ball as opposed to a fly-ball. While ground-balls most definitely are harder to defend and lead to a higher batting average against, a high fly-ball percentage at Fenway could spell doom for closers.
Bailey had a GB% of 37.1% which is right in line with former Red Sox closer Jonathan Papelbon's 37.5%. Papelbon certainly has the edge when it comes to the K/9 innings stat as he averages 12.17 K/9 to Bailey's 8.86 K/9, but they have fairly similar rates when it comes to the amount of HR's they allow per Fly-Ball with 5.7% of Bailey's fly-balls leaving the yard and Papelbon holding steady at 4.8%. The MLB average for HR/FB is at 10.6%, so both of these pitchers are well-above that mark.
So, the peripherals on Papelbon are clearly in his favor, but let's not forget we are paying Andrew Bailey $3.5 million as opposed to the $11 million Paps is getting in Philadelphia.
Bailey does have an edge over Papelbon however. He strands a much larger percentage of runners than Paps does. Bailey has stranded over 81.7% of his inherited runners while Papelbon has stranded only 68.7% and 69.7% over his last two seasons. This for Papelbon is a red-flag due to the fact that he inherited far less runners than Bailey due to the fact that other than September having Bard in front of him gave him only 16 inherited runners on the season. For Paps next season he will have to hope that his 8th inning set-up is as on point as Bard was in that role the last 2 seasons.
Another area of concern for fans of "The Nation" are in the past injuries of Bailey. Bailey has suffered from elbow and forearm strain injuries over the last two seasons and has thrown for more than 50 innings in either of the last two years. The Red Sox will most certainly be monitoring this closely. Arm injuries are always a major red-flag when it comes to pitchers, but I would not expect the Sox to treat Bailey with the same carelessness that the A's did. Back in the 2008 and 2009 seasons Bailey was being groomed as a starter in the Oakland system. He had 110 IP and 15 starts in AA in 2008 and then was asked to throw a whopping 83.1 IP in his Rookie Of the Year season in 2009. The A's had to use in him in the 8th and 9th in several games and as a closer with the changes in approach that are needed 193 IP over two seasons is a ton of work. Paps on the other hand as never been asked to throw for more than 70 IP in any of the Sox seasons and came into our system as a closer in college and never really left that role. Now, I am not saying this was the cause of his arm woes, but...well yes I am directly blaming the A's lack of bullpen and handling of their staff for the injuries.
So what have these arm injuries done to Bailey's approach and pitch selection over the last 2 years? Let's take a look:
| Season | FB%/MPH | CT%/MPH | CB%/MPH | CH%/MPH |
|---|---|---|---|---|
| 2009 | 59.4%/94.1 | 26.1%/89.1 | 14.3%/77.9 | 0.2%/86.5 |
| 2010 | 69.2%/94.3 | 20.3%/90.8 | 10.2%/77.3 | 0.3%/85.5 |
| 2011 | 76.6%/93.4 | 16.3%/86.8 | 6.5%/77.5 | 0.6%/84.8 |
These stats tell me that the arm woes are not affecting his velocity at all, which is a great sign and tells me that his shoulder is in great shape and that he uses his lower body a lot during his delivery. There has been a minor drop of less than 1 MPH over the years which isn't a big deal at all.
What concerns me here is that he is relying on his 4-Seam Fastball a lot more and that is a direct correlation the elbow and forearm pain he has been suffering from. His secondary pitches are his Cutter and his Curveball. Both of these pitchers put serious strain on the inside of the elbow and down to the forearm due to the pressure required from the middle-finger on the outside seems of the baseball. A 4-Seam fastball generally is held with zero palm on the ball as if the ball is a Yo-Yo. This generally affects the the bottom of the elbow, whereas the Cutter and Curveballs have pressure on the inside part of the middle finger and strains the tendons in the inside of the elbow and the fore-arm due to the late snapping motion of the arm.
A constant reliance on his 4-seamer is a dangerous way to live for a guy that is only throwing in the low-mid 90s, so I am hoping that either he has become much more effective with his change-up, or confident enough to throw it when he is behind in the count or that the arm woes have decreased significantly. Judging by the increase in the difference in the MPH of his Fastball to Change-up it looks like he is getting more adept at adding more friction to the ball with similar arm action and I would expect that we will see this pitch selection rise up to the 2% area at minimum. At least that is what I would advise Bailey to work on the most this off-season and Spring Training.
All in all, I would say that I am still very excited being a Red Sox fan that we have acquired Andrew Bailey and my projections for him this season are as follows:
2012 Season Projections
| Andrew Bailey | W | L | SVS | IP | ERA | K/9 | BB/9 | WAR |
|---|---|---|---|---|---|---|---|---|
| 2012 | 5 | 3 | 33 | 53.2 | 2.62 | 7.86 | 2.43 | 1.6 |
If my projections hold somewhat close to form, this deal will be a big winner for Ben Cherington and the Red Sox regime.
JB Knox a life-long Red Sox fan who grew up in Boston and now resides in Portland, ME. He like to use his experiences as a college shortstop with his ever growing love for statistical analysis to provide in-depth scouting reports on your favorite Sox players and more. Owner of www.1313sports.com






