JULY 27: Jackson has been officially released, tweets MLB.com’s Carrie Muskat.

JULY 19: The Cubs have designated Edwin Jackson for assignment, tweets Gordon Wittenmyer of the Chicago Sun-Times. The club has recalled reliever Rafael Soriano in a corresponding move.

Coming off of a four-season run in which he carried a 3.98 ERA over 812 2/3 frames, Jackson signed a four-year, $52MM contract with Chicago prior to the 2013 campaign. That move constituted the first real indication that the Cubs were prepared again to open their wallet.

As things stand now, Jackson hits DFA limbo while still owed the balance of his $11MM salary this season along with $11MM next year. That makes for a total future commitment of $15.63MM, per Wittenmyer.

Rather than serving as a sturdy number three or four option for the now-contending club, as might have been hoped, Jackson entered this year as a marginal roster candidate after posting a 6.33 ERA in 2014. The Cubs moved Jackson to the bullpen, and he has been better in a long relief capacity, carrying a 3.19 ERA and 6.68 K/9 against 3.48 BB/9. His velocity has also jumped back to 94.2 mph.

All said, there’s good reason to believe that Jackson still possesses a major league arm, and he’s likely to get another shot in relatively short order. But he has delivered nothing close to the value his salary demands, and it’s inconceivable that another team will grab him off the wire. Assuming that Jackson clears waivers, rejects an outright assignment, and hits the open market, the Cubs will only be lined up to save (at most) the pro-rated portion of the league minimum salary this year and next.

Chicago, then, is all but certain to remain on the hook for most of the $15MM and change remaining on Jackson’s deal. For the over fifty million invested, the team received a composite contribution of 347 innings of 5.37 ERA pitching (with 7.3 K/9 and 3.5 BB/9). The empty $11MM hit that Jackson represents for 2016 is hardly crippling, but does represent a notable impediment to an organization that seems likely to be tabbed with big expectations next year.

While the Cubs might otherwise have had cause to hold onto Jackson, the team has also been utilizing another deposed starter — Travis Wood — in a long relief role. Of the two, Wood is younger, cheaper, and has performed better (2.59 ERA in 17 relief appearances). As such, Jackson was viewed as expendable despite solid numbers.

Interestingly, Jackson’s contract has served as something of a template for several starting pitching deals struck in the ensuing offseasons. So far, none of those signings — Ricky Nolasco & Ervin Santana (Twins), Matt Garza (Brewers), Ubaldo Jimenez (Orioles), and Brandon McCarthy (Dodgers) — has really worked out as hoped, though there’s plenty of time left for assessment.

Soriano, meanwhile, was signed as a free agent on June 12 for a pro-rated $4.1MM with $4MM in incentives. He’ll serve to further bolster an increasingly deep Cubs bullpen. Jason Motte has filled in as the team’s closer in recent weeks, but it stands to reason that Soriano could factor into the late innings too.

The 35-year-old languished on the market after an up and down 2014 campaign. But he ultimately joined the Cubs last month on a deal that will pay him the pro-rated portion of a $4.1MM annual salary (plus incentives).

Since joining the organization, Soriano has yet to allow an earned run over seven minor league appearances. In 630 career innings, he has racked up 207 saves, a 2.85 ERA, 9.09 K/9, and 2.80 BB/9. Soriano spent most of the 2014 season as the Nationals closer before giving way to Drew Storen late in the season. He has 27 or more saves in five of the last six seasons.