We are considering a drastic overhaul of our 5+ year old site - UI, structure, content, SEO, backend, etc.  We are not ecommerce, we generate leads for a high cost product.We're aware of the obvious benefits: better customer service, stronger branding, less bandwidth, etc.A case is being built to fund this project, so the question at hand: what resources are available that would help us estimate what specific changes would impact a variety of metrics (conversions, leads, etc).  I am looking for general information, not industry specific.
Metrics on Potential Website Overhaul
seo;analytics;customer service;gui;metrics