Outside involvement makes you more recruitable, according to Levy. "You have to be involved with the [IT] community outside your company," he said.
This could take the form of user groups -- Levy noted that they exist for most major vendors and technologies. It could also mean joining professional and industry associations, attending meet-ups and conferences, and so on. Doing so will help on the learning and expertise front. It can also foster better networking, improve public speaking and presentation skills. ("Most techies aren't good speakers," Levy said.) And it can build the sorts of relationships and résumé fodder that enhance your chances of reaching the highest levels of an organization.
"Most [people] don't do that," Levy said. "[They] do their jobs and go home. They say they don't have time."