It seems we’ve reached the point in our GM Trade History series where someone at MLBTR has taken on the foolhardy, daunting task of re-chronicling the unyielding exploits of Mariners GM Jerry Dipoto — far and away the most active executive on MLB’s trade market. (What have I done?!) Commonly referred to as “Trader Jerry,” the seemingly tireless Dipoto has fueled hundreds of posts here at MLBTR (thanks, Jerry!) through a series of win-now moves, fringe roster tinkerings and, more recently, a “reimagining” of his organization.

Dipoto took the reins as the Mariners’ general manager at the conclusion of the 2015 campaign. Predecessor Jack Zduriencik had been unable to break the club’s mounting postseason drought, and ownership turned to a former division rival to try to turn things around. Dipoto held the GM post with the Angels from 2011-15 but saw a relatively publicized rift grow between himself and skipper Mike Scioscia over the manager’s unwillingness to utilize data from the club’s analytics department. The frustration boiled to the point where Dipoto resigned in early July despite reported attempts from owner Arte Moreno to persuade him to stay on board. Dipoto quickly landed an interim post in the Red Sox’ front office, and less than three months after walking away from the Angels, he was named the new GM in Seattle.

There’s a narrative that Dipoto’s constant activity rendered the Mariners’ farm bare early in his tenure, and while there’s probably some truth within that generalization, it’s equally important to note that he inherited a losing club with a relatively high payroll and an already-poor minor league system. That was four and a half years ago, though. How have things worked out for Dipoto since? Let’s take a (very long) look! Trades are in chronological order and exclude particularly minor swaps. (More details on each trade is available in the “acquired” link on each bullet.)

2015-16 Offseason

2016 Season

2016-17 Offseason

2017 Season

2017-18 Offseason

2018 Season

2018-19 Offseason

2019 Season

2019-20 Offseason

How do MLBTR readers feel about Dipoto’s landslide of trade activity? (Link to poll for Trade Rumors mobile app users.)

Grade Jerry Dipoto's trades as Seattle GM:

  • B 34% (1,769)
  • C 33% (1,703)
  • D 16% (842)
  • A 10% (502)
  • F 8% (400)

Total votes: 5,216

Interested in how other GMs hold up under this exercise? We’ve covered Diamondbacks GM Mike Hazen, recently fired Astros president Jeff Luhnow, Brewers president of baseball ops David Stearns, Angels GM Billy Eppler, Rockies GM Jeff Bridich, Tigers GM Al Avila, Braves GM Alex Anthopoulos and Blue Jays GM Ross Atkins as well.

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