Add metrics on inquiries - broken down by industry, profession, geography, type, value, ,etc.
Provide metrics on total requests, broken down by industry/profession, geography, type, est. value, etc. The ROI was not there for me after 3 months at the expert level. If the possibility is there and I am not seeing it by just browsing, this type of data may compel me to re-enroll at the expert level.