More so than perhaps any top trainer in the sport, Ken McPeek is always thinking outside the box. And he's at it again. McPeek is in the midst of a three-day excursion to Argentina, where he is shopping for yearlings. It's not at all uncommon for American trainers to buy yearlings overseas, but to do so in the Southern Hemisphere is largely unchartered territory. That's because Southern Hemisphere horses are born primarily in the months of August, September, October and November. For U.S. racing purposes, they turn a year older...