Too many cooks spoil the broth
Definition 1 of 1
Pro Tip 1/3Metaphorical Usage
The phrase is often used metaphorically to suggest that too much input can cause confusion or chaos. 
I wanted to redecorate my room, but with all my family's opinions, too many cooks spoil the broth.
Pro Tip 2/3Non-literal Sense
Remember, the phrase is rarely about cooking. It suggests too much management is counterproductive. 
The event was poorly organized because too many cooks spoil the broth.
Pro Tip 3/3Teamwork Balance
Use this phrase to emphasize the importance of balance and clear roles in teamwork. 
Our team learned the hard way that too many cooks spoil the broth.