The Unlikely Ascent of Oakland’s Bullpen
There are a lot of things going right in Oakland these days. For one thing, there are early indications that a red-hot rental and home-ownership market might finally be cooling off, even if only slightly (and very tentatively), thereby bringing four walls and a roof somewhat closer to reach for hundreds of thousands of ordinary Americans in the Bay Area. For another, the unemployment rate continues to drop (although wage growth is persistently and irritatingly slow to rise). And for a third, the Oakland Athletics have been the best team in baseball (west of Jersey Street) for over a month.
For a team to go 22-8 over any stretch, as the A’s have just done since July 10th, when they were last 10 games back of the Astros, requires a lot of things to go right. It requires Tony Sipp to hang a slider to Matt Olson. It requires a sweep of Texas on the road. It requires, in short, a little bit of that fairy dust that seems to have been scattered around the HoHo Coliseum since the days when Scott Hatteberg and Jonah Hill wandered those green fields — and the A’s have had that and all these things. But it also requires a lights-out bullpen, which the A’s have manifestly also had in recent days, and it’s this feature of the club’s recent experience on which I’d like to focus for a moment, because it wasn’t clear at the beginning of the season that this level of bullpen success was something the A’s would achieve or even necessarily aspire to.
The 2017 edition of the Oakland bullpen mostly sucked. By FIP (4.44), it was the ninth-worst in the game, by ERA (4.57) the sixth-worst, and by WPA, which is as close a measure as you can get to answering the question “was this bullpen good when it counted?” it was rock-bottom — the very worst in the game. If all you knew about the 2018 edition of the A’s pen is that it would no longer include Ryan Madson (who recorded a 2.06 ERA last year), you might project that it would take a step backwards this year, even after accounting for the winter additions of xwOBA darlings Ryan Buchter, Chris Hatcher, and Yusmeiro Petit in a busy offseason for Billy Beane.