SEATTLE -- Jack Zduriencik signed a contract extension with the Seattle Mariners on Wednesday to continue as the team's general manager.
Terms of the deal were not released, but it's believed to be for at least one year with an option for 2013.
Zduriencik has been credited with replenishing Seattle's depleted talent level in the minor league system and was named MLB's executive of the year after the Mariners went from 61 wins in 2008 to 85 in his first full season.
Zduriencik took over in October 2008 after five years under former GM Bill Bavasi in which the team had just one winning season and one of the worst farm systems in baseball.
Six weeks after taking over, Zduriencik orchestrated a 12-player, three-team deal during the Winter Meetings to set the stage for the farm system's revival.