Yes, and this could get into a very technical discussion, but there are a couple of elements that are important.
Scale is always a necessary factor, and that's why we look at enterprise architecture and interoperability: to ensure scale. When you can buy something that already does exactly what you need versus building it yourself—commercial and off the shelf—that is always the right way to go. The very worst scenario is buying something off the shelf that you then have to customize. That's part of what we saw in Phoenix.
These are important architectural discussions, and they're part of the ongoing process that we do as projects come through.