In the past creating keyword friendly URL's for large sites has been a piece of cake in other CMS's.
Typically, a base URL would be set in a template of each category, and wildcard entries would be inserted into the URL to create the variant.
Can it be that easy in WP? How are URL's formed in WP?
I'm having trouble with our developers and not really understanding what the issues are. They are saying they will have to rebuild from scratch if we want to vary what they have produced.