Seth Rosin was trying to concentrate on a literature final, but his dad kept calling. He was following December's Rule 5 draft via Twitter and was excited when he saw that his son had been picked up by the Dodgers, who plucked him off the Philadelphia Phillies' roster."That," Rosin said, "was a good day."Rosin finished his business and marketing degree at the University of Minnesota, fulfilling a promise to his mother, then traveled to Los Angeles for a clinic the Dodgers organized for some of their top pitching prospects.