Conway's Law

Conway's Law prov.  The rule that the organization of the
   software and the organization of the software team will be
   congruent; originally stated as "If you have four groups working
   on a compiler, you'll get a 4-pass compiler".

   The law was named after Melvin Conway, an early proto-hacker who
   wrote an assembler for the Burroughs 220 called SAVE.  The name
   `SAVE' didn't stand for anything; it was just that you lost fewer
   card decks and listings because they all had SAVE written on them.