Lindsay Schultz checked a lot of boxes. She is a graduate of the University of Louisville's Equine Industry Program, moved on to the prestigious Godolphin Flying Start program, managed Glen Hill Farm in Florida and worked as an assistant to Tom Proctor and Hall of Fame trainer Shug McGaughey. Yet, she admits to being nervous and not knowing what to expect when she decided last fall to go out on her own as a trainer. Maybe she shouldn't have been. Less than a year after opening her stable, Schultz, 34,...