FOUR ACTIONABLE LEADERSHIP TAKEAWAYS
Designate specific people to cover very specific topics in the interview process so they can get really good at those core competencies. Leave the generic questions to another company.
When you got them hooked, talk them out of it. If you can talk them out of it, they wouldn't have worked out anyway.
Sell early, grill after. Get someone to opt in by selling them on your goals and your mission. Then, gain their respect by grilling the heck out of them.
Each step in the process should test for different dimensions of sales and should be handled by different people with that expertise.