[stephen]

> You have to be very smart to be able to design a normalized constrained DB well.

Eh, nit picking, but I think "very smart" is overkill--I think "just smart" people should still be capable of designing normalized constrained schemas.

If they are incapable of doing this, then I don't want them writing any code anyway.

Being capable of doing it and choosing not to is either at least forgivable or completely understandable, depending on the situation.