Too many cooks spoil the stew

Too many cooks spoil the stew.

 and Too many Cooks spoil the broth.
Prov. Cliché Too many people trying to manage something simply spoil it. Let's decide who is in charge around here. Too many cooks spoil the stew. Everyone is giving orders, but no one is following them! Too many cooks spoil the broth.
See also: cook, many, spoil, stew