Sean Doolittle Talks (Washington Nationals) Pitching

The Washington Nationals haven’t pitched well this season. Employing 41 different hurlers — the most in the majors — the NL East club ranks fourth from the bottom in both ERA and FIP, and has the fifth-worst strikeout rate. With a handful of exceptions, the often-patchwork staff has been mediocre at best.
The future is nonetheless promising. Under the leadership of Paul Toboni, who was named president of baseball operations 11 months ago, the Nats have cast aside their old-school ways and adapted an analytically driven approach to securing outs. Bringing on board Simon Mathews as pitching coach and Grayson Crawford as director of pitching were especially meaningful steps in the organization’s much-needed retooling.
Retaining Sean Doolittle was likewise a shrewd move. Now the assistant pitching coach after serving as pitching strategist in 2024 and 2025, the 39-year-old former closer is simpatico with Toboni, Mathews, and Crawford when it comes to modern-day methods. Data savvy while also bringing a been-there-done-that understanding of what translates to success on a big league mound, Doolittle is an important part of what the Nationals are working to build.
Doolittle sat down to talk pitching when the Nats visited Fenway Park earlier this summer.
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David Laurila: The organization overhauled its pitching infrastructure this year. What are some of things you, and the staff as a whole, have been focusing on?
Sean Doolittle: “One thing that we’ve paid a lot of attention to this year is getting guys to use both of their fastball shapes, even to off-handed hitters. For our group, that’s been new. We don’t have a ton of velocity, so we have to be really conscious of our combos and our sequencing. I think it’s helped a few guys in our group quite a bit this season. Guys like Brad Lord have thrown a lot more sinkers this year to lefty batters. It’s still not a high-percentage-usage pitch for him, but overall it’s been a big part of our education process with helping our pitchers and our catchers read swings and sequence. Game calling and stuff like that.”
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