Ideas On Following Up With Listing Agents

[Tim Tafel]

What would be a great way to systematically follow up with listing agents? When I call an agent they either accept my offer price for their house or they don't even if they have been on the market for months and their asking price is clearly way above market value. Do I come back to those agents after a while or do I just move on to agents who are going to hopefully be more likely to say yes? If I do return to the agents who have said no but still can't get the property sold, how often? Anything advice any of you could offer would be great.