I found an interesting article by Scott W. Ambler on Doctor Dobbs Journal today called "Questioning Traditional Data Management".
http://www.drdobbs.com/architecture-and-design/questioning-traditional-d...
Scott points out 6 assumptions data management professionals often make and points out why he believes they are not valid assumptions. Assumptions like: It's expensive to evolve a database schema and Review and inspections are an effective way to ensure quality.
At this point in my career I have worked as a DBA about as long as I was a Software Developer so I can see both sides of this issue.