As a Rule 5 Draft pick on a World Series contender, Seth Rosin knows what he's up against. A guy who has never pitched above Double-A is trying to make the Opening Day roster of a team with a payroll north of $225 million. Those odds may not sound too promising, but don't count out the right-hander just yet. Rosin possesses a trait the star-studded Dodgers' bullpen is currently short on: versatility.