This week the USENIX Board announced that Anne Dickison and Casey Henderson have been appointed USENIX Co-Executive Directors effective April 2, 2012. Anne and Casey have been with the Association since 2003 and 2002 respectively. Previous to their new appointments Anne was the USENIX Marketing Director and Casey was the Information Systems Director.
If you've been at a USENIX conference since 2002 you've probably met them or seen them in the registration area. It was a delight to work with both of them when I co-chaired LISA '11 last year. Anne's super-power was not freaking out when I was and Casey's super-power was not being annoyed by my constant flood of technical requests. Both demonstrate the spirit of cooperation that is a great benefit to the the sysadmin, F/OSS, and open systems communities: a trait we should all strive to emulate.
Here's the full announcement: https://www.usenix.org/news/usenix-announces-new-executive-directors