Getting a 3-year-old to peak precisely on the first Saturday of May is an over-arching goal in our sport. But even for the very upper crust of colts, a brush with GI Kentucky Derby aspirations ends up being nothing more than an early diversion on a much longer development arc. It's always intriguing to watch how one-time Derby hopefuls progress over months and even years, and two of them from Todd Pletcher's barn signaled Saturday that they might be A-level factors in the second half of this season. Within the...