Culture drives performance, and agile leaders set a team's culture, so leaders should be measured at how effectively they’re doing just that. The challenge is, what might that look like? Here’s an idea for a four-quadrant measurement approach for leaders' organizational and personal effectiveness in agile contexts.

To be most agile with your communication, understand several models of learning styles, where you fit into them, and where your team fits into them. By tweaking the ways you communicate to fit the information and the situation, you are helping your team remain agile by valuing people and interactions over processes.

There's a simple rule for the minimum values testers should explore: “none, one, some”—or, how the software behaves if you send it nothing, one thing, or some set greater than one. It's not comprehensive, but it gives a good feel for how the feature works at the moment. Developers can also use this in unit testing.