"I worked in IT for many years. I used to be the whizkid, whereas now I am just the “older guy who’s seen it all” (I am getting old: I am over 30 now…). I’ve seen enough to make this very bold statement: “Migrating is hard. In fact, it might well be the hardest thing to do for an IT department”. Starting ex-novo is easy: you can decide what technologies you will use, and work around problems and idiosyncrasies of the chosen platforms. There are very few “gotchas” when you start from scratch and have a clear list of requirements. When you have to migrate, however, you often enter a real life nightmare: some things are just not going to work."
