Watermelons are beautifully green on the outside. But if you had never seen one before, you might be deceived into thinking the whole fruit is the same color. It wouldn't be until you cut it open that you'd come to find the inside is a deep, juicy red. Even though it may sound odd, watermelons are a fitting analogy for metrics in the IT world. It's easy to get a false sense of comfort by glancing at your dashboard. It often presents a large number of indicators that give off a welcoming green gl...