Pros
The great thing about this is that professionals can marry their passions that lie in other fields with their love of technology – in short, they can enjoy the best of both worlds in their career.
Cons
When I started working as a trainee, a longtime friend told me something I will never forget. He said that my job was to make myself obsolete. I didn't really understand what he meant at the time, but he was absolutely right. An IT pro's job is to make everything work perfectly. However, if everything did work perfectly, IT pros would not be needed.