Demanding more velocity is far and away, the most common Velocity Anti-Pattern, and quite possibly the most harmful. It manifests itself in a number of differing fashions, but the basics are the same: Somebody determines that the team needs to get more done in less time. So they send out the message - “We are going to need more velocities.” This person is usually an authority figure and typically doesn’t do the actual work being asked of the team. And they clearly don’t know what velocity is. More velocities? Aw C’mon, really?
This content and more on agile metrics is available in the book, "Escape Velocity"