At TechEd 2014, Kirk and Andy gave a talk titled "Hack-Ed: A day in the life of an Advanced Persistent Threatener".
This talk covered the motivations of an "Advanced Persistent Threat" actor, and the cycle they go through when infiltrating your network.
The slides for the talk are available here:
2014-ARC304-Hack-Ed-APT-ProwJackson (41mb PDF file)
The video recording of the talk is now available in several formats: