Shadow IT (unauthorized IT systems) can be incredibly frustrating to IT managers and other executives. It can be equally frustrating to employees. Generally speaking, people look for better ways to do their job. Humans are wired to be efficient. So when we go out of our way to research a better solution, find that solution, implement it, and even have success with it, it is frustrating to say the least when IT walks in and rips it out from under us.