Go back in time and find the customers who be most loyal before they become customers.
Redesign the marketing messages that deliver customers to reach those personas that are more likely to become loyal customers.
Meg Murphy at BigCommerce shared her story of doing this at the Totango Customer Success Summit. Taking what they had learned in Customer Success, they completely redesigned their marketing personas, and changed their pay-per-click ad spending and lead generation strategies. The raw number of leads coming in dropped, but the quality of those leads increased, and that ended up creating better conversions and retention. In addition, they freed up marketing budget they’d been spending attracting wrong prospects.
Here's a link to her session:
http://www.slideshare.net/totango/meg-murphy-323-1400