A longitudinal study of the functioning of top management teams in 27
hospitals examined relationships between group and organizational fact
ors and team innovation. A model of group inputs, processes, and outpu
ts was used, and it was predicted that group size, resources, team ten
ure, group processes, and proportion of innovative team members would
affect the level and quality of team innovation. The results suggested
that group processes best predict the overall level of team innovatio
n, whereas the proportion of innovative team members predicts the rate
d radicalness of innovations introduced. Resources available to teams
do not predict overall team innovation. The quality of team innovation
(radicalness, magnitude, and novelty) may be determined primarily by
the composition of the team, but overall level of innovation may be mo
re a consequence of the team's characteristic social processes.