The Q3.2011 issue of Briefings on Talent & Leadership by the Korn Ferry Institute relates a very interesting term and its definition on p. 11 under "Say what?", sourcing it from moneywatch.com at CBS.
Bus factor, n. A measure of how much the company would suffer if person X got hit by a bus. Example: "Jane has a really high bus factor."
In your school, which folks have the highest bus factors? Not just administrators--think faculty and staff...especially staff!
By the way, what's YOUR bus factor?
How can we mitigate the bus factor for key individuals?