Matt, Graeme, Everyone...I actually gave this some thought and honestly can't even come up with an answer to...
I see it all as more of an on-going process, making changes and tweaks as time goes on.
Using Tagz lets you adjust navigation much like SSI tags would.
We may hear of a viable SEO strategy and do some SEO-type tweaks.
Or, we may want to adjust our NoFollow tags from time to time...
It's almost like "which came LAST, the chicken or the egg?" LOL
-Boom boom boom boom.