Armstrong, who served two separate stints with the Mariners, played an integral part in keeping the team in Seattle in the early 1990s. Amid rumors of the team relocating to Tampa Bay, Armstrong was a consultant for the group, led by Nintendo chairman Hiroshi Yamauchi, that eventually purchased the club in 1992 and owns it to this day. Armstrong was tabbed to operate the club the following year and has since remained in his post.
In his previous stint with the Mariners, which lasted from 1981 to 1989, Armstrong helped make a decision that changed the direction of the organization when he convinced former owner George Argyros to pass on Mike Harkey with the first pick in the 1987 draft in favor of Ken Griffey Jr.
Armstrong, 71, has spent 28 seasons as team president for the Mariners. During those years, the Mariners advanced to the postseason four times. In 2001, two years after moving into Safeco Field, Seattle tied a big-league record with 116 wins.