This is the fifth in a 10-part series that will break down the storylines at each position in advance of spring training. At the plate today: third base. ? What happened last year: Veteran Jose Bautista was traded late in the 2008 season, a move that allowed Andy LaRoche to assume the starter role. LaRoche made all except 19 starts at the position. In 150 games, LaRoche put up semi-respectable numbers - a .264 batting average, 12 home runs and 64 RBIs. The 26-year old was better in the field, where he flashed Gold Glove potential. Among players with more than 50 starts at the position, LaRoche ranked first in range factor and second in double plays. Ramon Vazquez (nine), Neil Walker (eight) and since departed Craig Hinske (two) had the other starts here. ? In the hunt this year: LaRoche, Walker and Pedro Alvarez. After a forgettable July and August, LaRoche took his game to another level in the final weeks of the season.