The Quintin Berry Effect: Cubs Continue to Get Better on the Bases and in the Outfield

When Craig Counsell became the Cubs manager, he didn’t make immediate, significant changes to the coaching staff he inherited from David Ross. In fact, three seasons later, Dustin Kelly and Tommy Hottovy both remain in the lead skill roles they held under David Ross. However, Counsell exercised more freedom with his base coaches, to implement his defensive and baserunning strategy. The dust had barely settled on his first season when he made his first true addition to the coaching staff, going and getting Quintin Berry from his old staff in Milwaukee to be his new third-base coach. 

Berry’s coaching career started in Milwaukee the day he retired. A journeyman outfielder who played in just 132 big-league games but nearly 1,200 minor-league games, Berry was hired as the Brewers’ minor-league outfield and baserunning coordinator. After two years in that role, he was promoted to the major-league staff as first base coach, where he continued to work on outfield and baserunning until the Cubs hired him to do the same for them. Counsell clearly saw a need to improve the outfield and baserunning in his first year at the helm of the Cubs, and after seeing Berry’s impact in Milwaukee, he made him a priority. 

When Berry was named first-base coach in Milwaukee, they had just finished 29th in MLB in baserunning runs during the shortened 2020 season. Granted, they were 27th in team sprint speed, but still, that's not the kind of baseball Counsell wanted to play. It was the first year since his very first in Milwaukee that the Brewers finished under .500, and the first time in his entire tenure that his team had been below 17th in baserunning runs. In Berry’s first season on the big-league staff, they jumped to 8th in baserunning runs despite still being one of the slowest teams in the majors. We are seeing a similar impact with the Cubs this year. 

Of the 12 slowest teams in the major leagues, only the Cubs have positive baserunning runs, and the Cubs are in the top 8 in all of baseball. The Brewers, by comparison, are one of the fastest teams in the majors and are 13th in baserunning runs this season. They did remain a fantastic baserunning team last year, their first year without Berry on staff, but they have fallen off this year.

Berry’s impact on outfield defense looks similar. In his first year on the big-league staff in Milwaukee, the Brewers outfield jumped from 14th to 5th in outs above average and were top 3 for his entire tenure, including a pair of top two outfields in his last two seasons. The Cubs, by contrast, were 20th in outfield OAA during that same time period. While they snuck inside the top 10 in Counsell’s first year, they jumped to 2nd after hiring Berry and are currently in 1st this year. 

While his impact on the outfield as a whole is clearly quantifiable, so is his impact on individual players, especially in the jumps they get. Statcast combines three components to calculate an outfielder's jump. Their reaction, or their first step, is how much ground they gain during the first 1.5 seconds. The burst is the next 1.5 seconds after that, or their acceleration/explosiveness. Lastly, is the route they take to the ball and how direct it is. A look at the leaderboards for each of these three components shows that reaction and burst are much more important to an outfielder's value than their route is.  

Pete Crow-Armstrong was solid in his first full year in the bigs, but he took the leap to cement himself as one of the best defenders in baseball under Berry. 

Crow-Armstrong sacrificed some route efficiency to gain more ground with his first step, and it paid off massively.

Seiya Suzuki went from a below-average outfielder who served as the designated hitter more frequently than he used his outfield glove the past two seasons to a top-5 right fielder in baseball (depending on the metric you believe) under Berry, by improving his reaction and burst. Suzuki didn’t get faster—actually, he's the slowest he has ever been—but his reaction and burst have taken a large jump in his age-31 season.   

Although Ian Happ won 4 consecutive gold gloves from 2022-2025, Statcast defensive metrics largely disagree. He earned -7 OAA in 2023 and improved to -1 in Counsell’s first year, before putting up a 0 (average) under Berry in 2025. His jump has improved as well, but unlike Suzuki and Crow-Armstrong, he has done it by improving his routes.

How valuable is Berry? He has helped Crow-Armstrong become the best outfielder in baseball. He has helped Suzuki go from a DH to a plus defender in right. He has helped turn the Cubs into the best defensive outfield in baseball. He has helped make the Cubs a top baserunning team despite a slower roster. Add to all of this that the main division rival Brewers have gotten worse at running the bases and playing outfield since Berry left, and Counsell’s first true hire looks like an incredibly impactful net positive for the Cubs.