New Mariners General Manager Jerry Dipoto’s Major Trade History and Grades

Unlike his predecessor, new Seattle Mariners general manager Jerry Dipoto has previous experience as a top decision-maker (for lack of a better term) in a major leaguefront office.

Dipoto presided over the Arizona Diamondbacks for a short spell as the Snakes went through a transition period. The GM shipped off a number of key players.

Following his stint in the desert, Dipoto took over as the general manager of the Los Angeles Angels of Anaheim.

However, before we get to the spending and all-in moves made by Dipoto in Anaheim, his tenure in Arizona must be properly gone over with a fine-tooth comb—at least in terms of his trades.

Dipoto made a few major trades in Arizona. The most prominent of which occurred on July 25th, 2010 when he dealt Dan Haren to the Angels for Tyler Skaggs, Rafael Rodriguez, Joe Saunders and Patrick Corbin.

Haren was generally pretty outstanding in a Diamondbacks’ jersey. He earned All-Star nods in 2008 and 2009 while finishing fifth in the Cy Young voting in ’09. Over the two seasons he went 30-18 with a sparkling 3.23 ERA and 429 strikeouts in 445.1 innings pitched. His FIP was an even more outstanding 3.12. Haren led the league in strikeout-to-walk ratio in both 2008 and 2009.

The 2010 season was different for Haren. He went 7-8 with a 4.60 ERA in 21 starts. His FIP was a still-respectable 3.88, but it was clear his numbers were nowhere near his usual best. So with the Diamondbacks struggling, Dipoto sent Haren packing to his future employers in Anaheim.

The Haren trade was actually sneaky-good, in retrospect, for the Diamondbacks. Despite the ace posting an impressive 13.2 WAR in two-and-a-half seasons in the desert, he was traded. Haren was essentially dealt for three starting pitcher (Rodriguez threw 2.2 innings for the D-Backs and hasn’t seen the Majors since).

The first pitcher, Skaggs, posted a 5.43 ERA in 13 career starts for the Diamondbacks. The young pitcher was never quite able to put it together in Arizona. Dipoto later acquired Skaggs during his tenure in Anaheim. Skaggs and Adam Eaton to the Angels and White Sox respectively for Mark Trumbo (who strangely enough, was just dealt to Seattle a few months ago).

Saunders was extremely dependable as a member of Arizona’s rotation. He posted a 3.96 ERA in 424.2 innings for the D-Backs, serving as an innings eater. He only won 21 games in three seasons with Arizona, but was worth a 2.1 WAR.

Last-but-not-least,Patrick Corbin is the centerpiece of the deal. The starting pitcher has won 26 games in his three seasons with Arizona. He made the All Star team in 2013 and posted a 14-8 record with a 3.41 ERA and 178 strikeouts in 208.1 innings pitched. He missed 2014, but came back to post a 3.60 ERA in 16 starts this season. The 26-year-old is clearly one to build around for the D-Backs.

Haren never posted the brilliant stats he did in Arizona after leaving the desert. The fact that Dipoto received three major league starters for Haren, including an All Star and frontline starter in Corbin, makes the trade a win for him. Dealing an ace is never easy, but when you acquire three big-league starters, it’s looked at as a win—especially when one of the three has the potential to be a front-line starter for the foreseeable future.

Trade Grade: A

Five days after that Dipoto sent Edwin Jackson to the Chicago White Sox for David Holmberg and Daniel Hudson. Continue reading