The responsibility of marketers in the old world was to create awareness (and great marketers were also effective at advocacy). To generalize, marketers were responsible for 20% of the buyer journey and salespeople were responsible for the other 80%. Much like kicking a field goal, the marketers snapped and held the ball, while the salesperson came in to kick it through the uprights.
Read the story: traackr.com
Interesting discussion about how the role of marketing and sales are overlapping, blending and otherwise becoming one.