Steve is soooo very right on this one. Regardless of platform, the area where so many DBAs are lacking is just good old database design. An artist may have a full palette of colors, but if he doesn't understand (or is incapable of producing) good form, he may never be a great artist.
All too often, DBAs have a great knowledge of the nuts and bolts of a platform, but lack the necessary understanding of how to arrange them appropriately.
Asking the questions what are really trying to accomplish both immediately and in the not-too-distant future will often lead one to discover ways to create good database design.
Regards.
Rick