Corporate IT today is a microcosm for the way established corporations become sclerotic and fail to compete with new businesses. When you're building from scra

Corporate IT today is a microcosm for the way established corporations become sclerotic and fail to compete with new businesses. When you're building from scratch on a green field, it's easy to buy the most modern and efficient technology. Most corporations didn't build out their IT infrastructure until the early 2000s. Once you've invested in these systems, you're stuck balancing the cost of maintenance against the short-term cost of starting again, and the latter rarely wins. This is why Windows XP and IE6 aren't going away anytime soon, but it's also the reason the last few steel mills in the US are going out of business with century-old equipment while cutting edge plants are built in south-east Asia.