In a team setting, wherein only group performance is tracked, we show
that muted incentive contracts may be sufficient to motivate team memb
ers. By having the team repeat a task, explicit (contractual) incentiv
es can be substituted by implicit incentives team members provide to e
ach other. We also study an example in which, despite uncorrelated ind
ividual performance measures being available, it is optimal to conditi
on each manager's pay on both managers' performance. This can be viewe
d as creating a group performance measure. Using a group performance m
easure provides each manager with incentives to monitor and a means of
punishing other managers.