At this stage exactly four weeks ago, trainer Tom Drury, Jr. was sitting pretty with Art Collector (Bernardini), who figured the solid second choice in the GI Kentucky Derby four days hence. But, as happens all too often in this game, fate intervened, and 24 hours later, Bruce Lunsford's homebred was a high-profile defection from the Run for the Roses. A month later, the colt will again try to play the role of spoiler, this time as the morning-line 5-2 second favorite to Derby hero Authentic (Into Mischief) in Saturday's...