So You Want to Have a Good Bullpen
This time of year, I tend to get stuck staring at projections. I think it’s a mechanism I developed over time as an alternative to making too much of spring-training statistics. I like to look at the projected standings to give myself a constant reminder of how the whole baseball landscape shakes out, but I also like to look at historical projected standings to give myself a similarly constant reminder of how baseball can surprise. Every March, I go back through my projections spreadsheet to remember supposedly good teams that underachieved. And even more fun than that, I browse to remember supposedly bad teams that overachieved.
When I do that, I’m reminded of the unbelievable 2012 Baltimore Orioles. They might be the most improbable recent success story — that team won 93 games, after being projected to win a woeful 70. And the key to the club was that they had the league’s most effective bullpen. This was before the emergence of bullpen monster Zach Britton. And in a way, those Orioles are representative; many of the greatest recent overachievers have been powered by excellent bullpens. Between 2007 and 2008, for example, the (Devil) Rays’ bullpen went from worst to first. A strong bullpen can squeeze wins out of thin air. There’s nothing quite like one, when you’re looking for any kind of separator.
I don’t need to tell you a good bullpen is important. Every fan *knows* a good bullpen is important. The question is, how do you know you have a good bullpen? It’s not as easy as you’d think. Or, it’s exactly as hard as you’d think.

