Keep the process specialists. If you look at IT, you'll find that most companies are keeping hold of their data management. You want to understand your data models, so keep those internal. You also want to keep the people who know the vendors and know how to manage those relationships. This is probably the most painful part.
Globalization is increasingly technology-dependent.
So their suppliers had to change, too. That's a big driver. Where you have to focus will be driven by your business model. Look at the location of materials and demand. There are only a few technology service providers that operate globally.