many cooks spoil the broth

Translations
у семи нянек дитя без глазу
We tried to have everyone involved in the decision, but many cooks spoil the broth.
Мы пытались привлечь всех к принятию решения, но у семи нянек дитя без глазу.
Definitions
This phrase means that when too many people are involved in managing or organizing a task, it can lead to confusion, mistakes, or a poor outcome, rather than improving the result.
Words
broth

noun
бульон
cook

noun
повар
spoil

verb
портить