According to the training, what is the BEST long-term strategy for generating a consistent and predictable lead source for your sales team?

Invest in developing an inbound marketing program to market your own agency and treat yourself like your own best client.
Build a robust referral program to gain new referrals from existing clients.
Pay for a Google Adwords program and continuously optimize around the keywords your personas are likely searching for.
Focus on developing a large social media following and promote your services to your audience.