Work stress, projects behind schedule, and low productivity are all symptoms of an underlying problem with workload variability. You'll feel it as some months you can't get the important things even started, and other months you're pushing productivity past the redline. The solution lies in measuring the variation in workload, and not just the amount of it.

In NASCAR racing, you might be forgiven for thinking that a speedometer is a very important gauge for the driver. After all, racing is about speed, right? And speed should therefore be measured. But ironically, NASCAR drivers don't use a speedometer at all.

Guest author Martin Klubeck, author of Metrics: How to Improve Key Business Results, reminds us just how easy it is to fall into the trap of making our measures the end goal, and why we must make sure we stay connected with our intended results.

One of my performance measures is Measure Up Unsubscribe Rate, the proportion of readers who unsubscribe from this newsletter. Sometimes it's what I write about that makes them unsubscribe. And that can make the Measure Up Unsubscribe Rate will spike up. Should I worry about this?