Information is the key to successful business today. You need to be able to act on your information and protect it. To use information, we all rely on secure networks, a solid IT strategy, our laptops, phones, and computers; apps; email; servers; the cloud; and the 1,002 other information technology-related tools we all use to make decisions internally and work with our customers externally. Many companies continue to think that doing everything themselves is a good idea. It's not. At least not all the time. There are three IT functions you can easily stop doing yourself.