The Oakland A’s arguably had the best bullpen in the majors in 2020. They led the league in ERA, ranked third in FIP, second in Win Probability Added, second in bWAR, and fifth in fWAR. They only blew the lead four times, second-fewest in the bigs.
That 2020 group was led by closer Liam Hendriks, who was named AL Reliever of the Year, as well as three setup men — Joakim Soria, Yusmeiro Petit, and All-MLB Team finalist Jake Diekman. Behind them were a slew of arms providing solid work, somewhere between decent and excellent, like J.B. Wendelken, Lou Trivino, T.