the.com/bullpen
baseball's waiting room for arms, where confidence goes to warm up or die.
means the area where relief pitchers warm up before entering the game, and by extension the group of relievers themselves.
from 19th-century ballparks penned relief pitchers near the outfield, often by fenced advertising areas for bull-brand tobacco, hence the name; the term later leapt into offices for open desk clusters.
tobacco linkbull durham ads may have named it
office slangnow means open shared workspace too
phone traditionmanagers call in relievers by landline
psychological zonepitchers warm up under live pressure