1.   If too many cooks spoil the broth, too many Popes tarnish the faith!

2.   Too many cooks spoil the broth.

3.   His theory was that too many cooks spoil the broth.

4.   We have debunked the old saying that too many kooks spoil the broth.

5.   Too many cooks spoil the broth, as the saying goes.