Wieck - the 6-foot-9 left-handed reliever - went from a cancer diagnosis to a Padres cast-off and wound up finishing the year carving through the heart of the Cardinals order in the eighth inning of a must-win game in late-September for the Cubs.
Wieck began 2019 with a testicular cancer diagnosis in January and underwent surgery shortly after. That left him playing catch-up all spring training, unable to lift, run or throw off a mound for a month after the surgery. He only ended up facing live hitters twice before the regular season started and was never able to recover with the Padres, putting up a 5.71 ERA in 34.2 MLB innings.
Then the Cubs came calling.
While the rest of Cubdom was understandably occupied on Trade Deadline Day celebrating the Nick Castellanos move, Theo Epstein's front office made a smaller move with the San Diego Padres. And Wieck wasn't even the central focus of that trade, as more of the emphasis was on the departure of Carl Edwards Jr. - a polarizing figure in the Cubs bullpen the last few seasons, including throughout the 2016 World Series run.
Yet Epstein's front office didn't treat Wieck like a throw-in. From Day 1 with the organization, the Cubs handled the southpaw more like a first-round draft pick.
Right after the trade, Wieck was immediately assigned to Triple-A Iowa, where he made a pair of appearances against the Tacoma Rainiers. From there, he was invited to Chicago to meet with the Cubs front office and throw a bullpen off the Wrigley Field mound.
"So I got here and they had a whole presentation of what my current curveball looked like and what they would like the shape of it to look like and so we just started messing around with grip," Wieck said. "I went to a spike curveball grip and we got in the lab and we started throwing it more and we came up with consistent break of what we thought was gonna be a better break than the curveball that I had.
"Just trial and error, honestly. We just looked at Rapsodo stuff and saw what spin efficiency is doing and spin rate and trying to get my curveball spin to replicate the exact opposite of my fastball. That's what our goal was."
That led to a trip to the "Pitch Lab" in Arizona where Wieck worked with Josh Zeid, the Cubs' pitching analyst, to continue to mess around with the new curveball grip and add a new, consistent weapon to his arsenal.
If the term "spike curveball" sounds familiar, it should. It's become the unofficial pitch of the Cubs (you know, if organizations defined themselves by just one pitch). Rowan Wick - Wieck's former roommate in the Padres system - broke out as a trusted big-league reliever in large part because of the emergence of his spike curve. Craig Kimbrel throws one and also taught the pitch to Yu Darvish, who added it to the plethora of options already at his disposal.
Wieck's time in Arizona was about getting comfortable with the new pitch and not worrying about facing hitters or pitching in a game. After a couple weeks in the desert, the Cubs threw him back out on the mound in Iowa, where he made four appearances before getting the call to the big leagues when rosters expanded in September.
Right off the bat, we got a look at that spike curve and there is no doubt it can play at Wrigley Field, especially when the shadows roll in:
Brad Wieck, Soul Stealing 74mph Curveball. 😱👻
[H/T pretty much every cubs fan] pic.twitter.com/Sb0agGivOQ
— Rob Friedman (@PitchingNinja) September 2, 2019
Just like that, a new weapon was born and Wieck developed more confidence in that reshaped curveball.
"I like that they're forcing me to throw it more because I've been a fastball-heavy pitcher my whole life," Wieck said. "I trust my fastball with my life. To have a catcher get back there and make you throw it, that's really good."
The Cubs' confidence in Wieck also grew as the month went on. He emerged alongside his buddy Wick as vital pieces of the late-season bullpen while Kimbrel and Brandon Kintzler dealt with injuries. It got to the point where Joe Maddon kept Wieck in to face the Cardinals' big boppers (Paul Goldschmidt and Marcell Ozuna - both right-handed hitters) with a 1-run lead in the eighth inning on that final homestand. We all know how that game ended (Kimbrel served up homers on back-to-back pitches for another gut-wrenching Cubs loss), but Wieck did his job and proved he's far more than just a lefty specialist.
This fall was the first time Wieck had been a part of a playoff push and that outing against the Cardinals was only the 46th MLB appearance of his young career. Moving into 2020, the 28-year-old southpaw looks to be one of only a few arms penciled into the Cubs bullpen.
The Cubs had their eyes on Wieck for a while before they were able to trade for him and they don't plan on rolling out a big presentation for each acquisition or ask every new arm to start throwing a brand new pitch or completely remake one of their existing pitches. This was a unique situation, but it's one that already paid dividends in a short period of time and could help set up the bullpen for the future.
It's also another indicator that the "Pitch Lab" can work, as Wieck joins Wick and Kyle Ryan as products of the Cubs' new model they hope to fine-tune and grow. Epstein will hire a director of pitching for the organization this winter and the Cubs are hoping to change the narrative surrounding their shocking lack of pitching development under this front office.
In Wieck's case, it was a group effort from the Cubs - the front office, research and development department, big-league coaching staff (led by pitching coach Tommy Hottovy), the pitching analytics unit based in Arizona and minor league pitching coordinator Brendan Sagara all teamed up to make it happen for the tall lefty in only a month's time.
It's a model the organization will attempt to duplicate moving forward, beginning this winter.