Aka "9 women won't give birth to a child in 1 month". An example often used to describe how adding more developers doesn't necessarily solve an issue quicker.
Credit for this goes to Fred Brooks, and appears in his famous book "The Mythical Man-Month"
Yes it does. I could not find my copy to find the quote I wanted to use so I used my own (not quite as effective) words.
Didn't mean to imply you'd done something wrong, just added to your comment.
"What one programmer can do in one month, two programmers can do in two months." - Fred Brooks