PITTSBURGH – The Reds are making major changes to their player development system, parting ways with several minor league coaches and coordinators throughout the organization.

Among the coaches who will not return next year are outfield/baserunning coordinator Billy Hatcher, Triple-A manager Jody Davis, Triple-A pitching coach Jeff Fassero, Double-A pitching coach Danny Darwin and hitting coordinator Milt Thompson, according to sources.

“We made some changes to department heads last year,” Reds general manager Nick Krall said. “Whether it’s scouting, player development, we just made some changes with some coordinators and coaches that we felt we had to make from a direction to just continually get better.”

Like the Major League coaching staff, the Reds are placing a bigger emphasis on the new technology throughout the sport. Pitchers are using high-speed, slow-motion cameras and pitch-tracking devices during bullpen sessions. Hitters have their own devices to break down their swings.

The Reds are focused on trying to align the MLB and minor league coaching staffs and how they develop players.

“At the end of the day, we’re an organization that has to build our talent through our minor league system, the draft, international (signings),” Krall said. “We have to maximize that. We have to figure out a way to maximize every aspect of that. That’s going to be a big deal for us moving forward.”

Hatcher spent 14 years in the organization, including 13 on the Major League coaching staff. He was Reds’ third-base coach from 2016-18 and the first-base coach from 2006-15. He moved into a minor league instructor role before the 2019 season.

Davis managed Louisville to a 59-81 record this season. It was his fourth year in the organization, managing one year at Double-A and spending two years as the Triple-A hitting coach.

Fassero was in the organization for six seasons, which included three as Louisville’s pitching coach. He was the club’s roving pitching instructor in 2016 and spent his first two seasons in the organization as the Double-A pitching coach.

Darwin served as the Reds’ interim pitching coach last year after manager Bryan Price and pitching coach Mack Jenkins were fired in April. He was the organization’s Double-A pitching coach for three full seasons.

Thompson was the organization’s hitting coordinator for the last three years. He worked with the Kansas City Royals from 2013-16.

BAUER SCRATCHED: Trevor Bauer was scratched from his final start of the season because of an illness. He said he tested negative for the flu, but he was unavailable for the final two days of the season.

“The most important thing to me is to be able to take the ball when it’s my turn,” Bauer said. “Regardless of results, I’m proud of that. I took the ball every start this year, so it sucks to miss one at the end. It just wouldn’t have made sense to pitch, given how I felt and how limited my activity has been the last four or five days.

“I was pretty banged up.”

The Reds were already planning a bullpen game for the final weekend. Tyler Mahle started in Bauer’s place for Game 162. He threw 72 pitches in a rough outing Wednesday when he gave up a career-high seven earned runs in 2 innings. Mahle returned on three days’ rest instead of the usual four.

Pitching coach Derek Johnson told Reds manager David Bell on Saturday that Mahle could be an option for Sunday’s start.

“(Mahle) didn’t throw side, which turned out to be good,” Bell said. “He seemed really excited about it. Maybe, he just wanted to finish strong. I think that’ll help with that.”