Mariners: Hye-Seong Kim, 2B

Cole Young, the Mariners' No. 2 prospect, performed well at Double-A last season but isn't likely ready to take over the second-base job just yet. Kim, who turns 26 in January, has a .304/.364/.403 slash line over seven-plus years in the KBO, stealing at least 25 bases six times. Kim would add a contact hitter with speed who could help change the dynamic of the Mariners' lineup, which ranked 14th in the AL in batting average (.224) and struck out more than any other club.