This is one of the points made repeatedly in the book _Skunk Works_ by Ben Rich: the engineers works side-by-side with the folks building the parts, and have so

This is one of the points made repeatedly in the book _Skunk Works_ by Ben Rich: the engineers works side-by-side with the folks building the parts, and have some manufacturing knowledge themselves. The Skunk Works fusion project that was here the other day made passing mention of that approach too.