As the article talks about, its not really about mock drafts. Its about the top 100 boards. Which is basically the forecast for 1st 3 rounds.
Goose Gosselin of the Dallas Morning News used to be the best at guessing the top 100. He had sources with so many teams and in the industry, he would actually be able to get information about alot of team's boards. He would then put together his top 100 based on that information.
The year we took Robert Brewster, he had him in his top 100. Nobody in the country had Brewster rated that high. Most didnt even know who he was. But Goose's source with the Cowboys kept bringing up Brewster. He knew we wanted him in the 3rd round. Cowboys got him at pick 75.
The top guy this year was Bob McGinn who writes for a Milwaukee newspaper. He is really tuned into the draft. He got 87 out of the top 100.