That just means involving more people _right now_ won't speed things up. But you can "make 9 babies in 9 months" if you plan early and involve enough people. I.e. know how much Q/A people you need and hire them upfront.

Yeah, and have them twiddling their thumbs while there's no product to test?

9 women can make a baby every month for 9 months

with an initial delay of 8 months.