Valleywag's take on Marissa Mayer's (VP at Google) Businessweek interview:
[Google VP Marissa] Mayer says:
There certainly are some engineers who tire of working on one
particular task and want to move on to a new task.
Mayer means: "You've heard of Geek A.D.D.? Add that to a PhD and a sense
of entitlement, and 'herding cats' becomes a woefully inadequate
metaphor. Try 'herding ecstasy-fed pumas.'"