WTF: Bos to the Races

bosio topps

Not many Tigers fans were excited when the team named Ron Gardenhire as its new manager this past offseason, but Gardenhire’s decision to add former Chicago Cubs pitching coach Chris Bosio to his staff seemed promising. After all, Bosio brought a championship pedigree by virtue of his five-year tenure with Theo Epstein’s Cubs. With Justin Verlander gone from Detroit, the Tigers pitching staff looked especially young and vulnerable. Bosio’s recent track record lent hope to the idea that he could be a secret weapon on the bench and, in particular, help mold an inconsistent rotation into a stronger, more developed group. In spring training, Bosio also showed a willingness to clash publicly with Gardenhire, which suggested an independence and division of developmental responsibility not necessarily out of place on a rebuilding team.

One of Bosio’s announced modifications he wanted his new charges, especially Jordan Zimmermann, to make, was to work faster on the mound. So far, they appear to have taken his advice. Fourteen pitchers have shortened their inter-pitch times by more than two seconds as compared to 2017, and three of them are Tigers starters:

pitcher pace

Zimmermann, Michael Fulmer, and Matt Boyd have upped their respective paces substantially this season over last season. I think that alone is a good sign, because it demonstrates both a willingness and ability to make changes in approach designed (or believed, at least) to improve outcomes. That’s the bigger question, though. Zimmermann, Fulmer, and Boyd are working faster, but are they doing better?

To try to answer that question, I propose a DRA-based comparison, which should allow us to see, on a rate basis, whether these three Tigers starters also have been pitching better in 2018 than they did during their slower days in 2017.

delta dra re pace

Of the three, Zimmermann had the smallest pace increase but the largest improvement according to DRA. Boyd, who’s shown the biggest pace increase of any pitcher, also has been better, while Fulmer has been a bit worse.

Without more digging, I don’t know that there are any broad statements to make about the consequences of speeding up on the mound. Importantly, we don’t know how the 2018 versions of these players would perform had they continued to work at their slower paces; the results might be exactly the same. The above does provide some circumstantial evidence that increasing pace can help some players, however, and it also suggests that Bosio was right to target Zimmermann as a guy who could benefit from operating at a faster pace.

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The Tigers don’t have any of the top fifty players of 2018, as ranked by fWAR, on their roster. Third baseman Jeimer Candelario used to be on that list, but he now sits sixty-fifth (1.3 fWAR) after missing time with wrist tendinitis. He could return to the team later this week.

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Previously
WTF: Welcome Back Kozma – 5/9

Related
2018 Detroit Tigers Season Preview
Highlights from MLB Network’s visit to Detroit Tigers spring training

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Highlights from MLB Network’s visit to Detroit Tigers spring training

fiers mlbn

As it has done in the past, MLB Network’s “30 Clubs in 30 Days” program spends a day with each major-league team during spring training. They spent Monday with the Detroit Tigers in Lakeland, Florida. Here are the highlights:

  • Miguel Cabrera was guarded in discussing his health coming into the season after injuries limited him to 130 games and a career-worst 91 wRC+ in 2017. He admitted it was tough to find enjoyment in the game last year, but he expects to be back to having fun in 2018.
  • Ron Gardenhire, the Tigers’ new manager, said that his time outside of the game gave him perspective on the special nature of the opportunity he and his players have to make a living in baseball. While he avoided specifics, it sounds like he has fairly modest expectations for the season. It also looks like he wishes his baseball pants had pockets.
  • Likely number-one starting pitcher Michael Fulmer called Gardenhire “awesome” and described him as a “very positive guy.” Fulmer also said he “had a little setback with the elbow earlier in camp, but we’re all good now.”
  • On High Heat, General Manager Al Avila emphasized the youth of the 2018 roster. He confirmed that Fulmer is “one-hundred percent” healthy, indicated that second-year player Jeimer Candelario would be the opening-day third baseman, and described Cabrera as “much stronger” following an offseason physical therapy regimen. Avila believes that Cabrera can maintain a reasonably high level of production if he sticks to his offseason training plan, comparing him to other late-career success stories like Ivan Rodriguez and Vladimir Guerrero. He dodged a question about whether the obviously rebuilding team would shift its approach if it somehow found itself in a contending position midway through this season, but he did allude to the comparatively positive perception of Detroit’s current rebuilding process as compared to the actions of other teams that have drawn accusations of anticompetitive behavior. Avila also referred to “millions of dollars” the team had invested in “new technology,” which apparently includes biomechanical-oriented technology and an analytics department that now boasts a staff of twelve. Finally, he said that “nothing has changed” in his “great” relationship with ownership, which has transitioned to the late Mike Ilitch’s son Chris, who, Avila said, “has backed me one-hundred percent.”
  • Hopeful starting pitcher Daniel Norris reports that he is feeling healthy and, while he wants to compete for a rotation spot, he’s trying not to ramp up too fast in spring training in order to maintain that health.
  • The consensus among surveyed players is that presumptive closer Shane Greene has the worst taste in music, while Jose Iglesias, despite his own strong opinion to the contrary, has the worst singing voice.
  • Iglesias did get the opportunity to speak for himself and answer the Harold Reynolds question “What’s funner, snatching a hit from somebody or getting a big hit?” While Iglesias, a native of Cuba, wasn’t able to watch much major-league baseball growing up, it’s clear he’s picked up on Crash Davis’ tutelage from his answer: “Both.”
  • Nick “Nicholas” Castellanos, who’s moving from third base to right field on a full-time basis in 2018 said that he was not mentally present for much of last season because his father was ill, but, now that his dad is healthy, he will be able to reunite mind and body and is approaching this season with a seize-the-day attitude.
  • New arrival Mike Fiers praised the team’s new pitching coach, Chris Bosio, and says he feels he’s getting back on track under Bosio’s guidance. The two previously worked together during Fiers’ rookie season in 2011, when both were employed in the Milwaukee Brewers organization. Fiers, who spent the first five years of his career in Milwaukee before shifting to Houston for the past three seasons, arguably had his best performances as a Brewer.
  • Alan Trammell, fresh off his election into the baseball hall of fame, is working with players on infield fundamentals.

I didn’t think this year’s edition of this feature was as entertaining as it has been in past years, but there are a lot of new faces on this team and a new strategic approach that Tigers fans haven’t seen in some time, and I thought the profile was, on the whole, serviceable.

Stay tuned for a more thorough Detroit Tigers 2018 season preview, which will appear soon over at Banished to the Pen.