Decent presentation.  Didn't know they deployed (deplew?) so often, but makes sense.  Staying ahead of the game is kind of why they are successful (as is true for nearly any web app, as switching is so easy).<p>The basics are:<p><pre><code>  no fingerpointing
  understand each other
  automate automate automate every little thing
  automate automate automate every big thing
  profile the results</code></pre>