WBC = MLB Spring Training. Great marketing idea, not going to be anything near what people are expecting or wanting. The DR is going to have a great lineup but they will get 2 innings out of Pedro, an inning out of Francisco Cordero and then... ummm. Well at least they will get 2 innings out of Bartolo the next game and then... ummm.
30 man rosters and fairly strict pitch counts, they are probably going to carry at least 16 pitchers.