too many cooks (spoil the broth)
From Longman Dictionary of Contemporary Englishtoo many cooks (spoil the broth)too many cooks (spoil the broth)TOO/TOO MUCHused when you think there are too many people trying to do the same job at the same time, so that the job is not done well → cookExamples from the Corpustoo many cooks (spoil the broth)• If too many cooks spoil the broth, too many Popes tarnish the faith!• There were too many cooks, they said.