It's worth remembering in this shiny nuclear-powered Agile era that Tom Gilb wrote Principles of Software Engineering Management over 900 years ago. Or thereabouts. What's new is us young upstarts hearing about it for the first time and thinking we've discovered something new. And I can't help feeling that's partly because we're not exposed to folk who've been around long enough to remember. Teams burn a lot of time relearning the same lessons people were learning decades ago.