With the first major 2-year-old sale, OBS March, now in the books, and the next round, the OBS April sale, right around the corner, it's time for some predictions. We asked the experts who their pick is for leading freshman sire and also asked them for a "sleeper pick," or a stallion that will perform beyond expectations. Here's what they had to say: STEVE VENOSA Top Pick: Jackie's Warrior (Spendthrift Farm, $25,000) Training them this year, I think the obvious two horses are Jackie's Warrior and Drain the Clock. They...