(entered for Nov. 06, 2005 at 11:55 pm EST)

Meaning: too many people involved will mess things up. Use examples.
Rewrite 1: too many artists spoil the fresco
Rewrite 2: too many generals spoil the battle
Rewrite 3: one more handyman and the walls will fall
Rewrite 4: one politician too many spoils the campaign

Comment: The must be many more examples of too much of something spoiling another thing. What would too many teachers spoil? Too many bullies2a? Too many doctors? What would be an absurd example? Have fun with it!

More reading about clichés
What I found when I googled “clichés”:
• From FindCliches.com: “The Web’s Largest Collection of Cliches, Euphamisms, Sayings, and Figures of Speech.”