But Agile will fix everything!
I read MMM, the first time, in the early 80's. I was working on a IBM OS/370 mainframe (running Michigan Terminal System for time-sharing) so the references to PL/1, LOC, and other metrics of the time made sense to me. While the metrics may have changed, the message still holds: Software Development is a "creative" activity requiring engaged intellect; it can not be reduced to assembly line steps that a Project Manager can control. I'm always amazed at how few PMs have heard of, let alone read, this book.