A lead age expert or a lead generation specialist is an expert that works in B2B businesses given the job of gaining and assessing new leads. ... As a lead age trained professional, your set of working responsibilities is principally about producing new leads from outbound selling or inbound selling and pre-qualifying them for deals.

First of all we need to understand what is sales funnel and why do you need it for your business? This is for readers who just experience the terms. A sales funnel is strategy of entrepreneur to earn the audience’s attention. 

This topics is discussed briefly by a Virtual Staffing Company in the Philippines on their blog post about sales funnel. It was explain what it is and how important to have sales funnel in the business.