The Yankees have a history of excellent bullpen performance. Relievers are notoriously volatile, but in most cases, the Yankees have done well in evaluating relief pitching, with a keen eye for so-called “failed starters.” They also know when to give someone a chance, as well as just the right time to cut ties.
This also applies to their bullpen management, which has evolved from strict seventh, eighth, and ninth-inning guys into more of an arrangement where the team just has pitchers. During a “bullpen game,” arms can be used at any time, a concept the Yankees thrived on in 2019.