This article describes emergency department care work teams designed to imp
rove team communication and coordination and reduce error. The core of this
teamwork system is the teaching of teamwork behaviors and skills, developm
ent of teamwork habits, and creation of small work teams, all of which are
key teamwork concepts largely drawn from successful aviation programs. Argu
ments for enculturating teamwork into ED practice are drawn from a retrospe
ctive study of ED malpractice incidents. Fifty-four incidents (1985-1996),
a sample of convenience drawn from 8 hospitals, were identified and judged
mitigable or preventable by better teamwork. An average of 8.8 teamwork fai
lures occurred per case. More than half of the deaths and permanent disabil
ities that occurred were judged avoidable. Better teamwork could save nearl
y $3.50 per ED patient visit. Caregivers must improve teamwork skills to re
duce errors, improve care quality, and reduce litigation risks.