With the Kentucky Derby field pretty well set, we launch into three weeks of previews on the Ron Flatter Racing Pod. Eclipse Award-winning writer and handicapper John Scheinman will discuss his long-range views on the 3-year-old crop and specific horses in the Derby itself. Tim Layden pays tribute to his predecessor as Sports Illustrated’s turf writer with a look back on the life of the late Bill Nack, who died last Friday. Feedback from listeners via social media is also included this week. The RFRP is sponsored by ForHims.com/Racing.