Bully Barkline has a solid interview online with Manny Diaz. Skip to about the 5:00 mark to jump past the commercials.

Some highlights:

• Diaz breaks down his impressions of the State D from the prior 2 years, especially comparing the 08 and 09 versions
• Discusses the originations of his aggressive style of defense
• Judging from the audio, Diaz as a similar personality to Mullen - very fast talking and direct
• Also gives props to Chris Wilson and how easy it has been to work with him