PITTSBURGH -- Though many of the moving parts were known in advance, the Pirates officially unveiled their reworked Major League coaching staff on Thursday.

New additions to the club include Major League hitting coach Andy Haines and game planning and strategy coach Radley Haddad. Internally, Major League field coordinator Mike Rabelo will assume third-base coaching duties in addition to his coordinating duties and bench coach Don Kelly will add infield instruction oversight to his list of tasks.

Haines joins the Pirates from a division foe, the Brewers. Milwaukee had mixed results offensively in his tenure there, including a .396 slugging percentage (23rd in MLB) and a .713 OPS (20th) last season and six runs in four games against the Braves in the NLDS. However, as Pirates manager Derek Shelton knows from his previous tenure as an MLB hitting coach, results do not always speak to any one coach’s capabilities.

“There are years where you have guys that struggle, then all of a sudden it falls on the hitting coach,” Shelton said. “I think the big thing for us is his plan going forward, his work not only with Major League hitters, but this guy has been a coordinator.”

One of the things GM Ben Cherington mentioned that drew the club to Haines was that he has “an uncommon combination of experience with open mindedness.” That experience includes seven years as a Major League manager in the Marlins’ farm system from 2009-15 and two years as the Cubs’ Minor League hitting coordinator in 2016 and ‘17.

In seeing Haines’ blend of extensive resume with his willingness to learn and evolve, the Pirates believe they found someone who fits their desire to rethink their hitting instruction plans and constantly challenge their own assumptions.

“We’ve seen the hitting space grow exponentially in the last few years,” Shelton said. “I think when you find guys who have done it, they’re not as open-minded as we thought Andy was. We thought that was kind of a unique blend: A guy who has been a Major League hitting coach, been around some really good hitters, but he’s still open-minded to [practicing differently]. We will continue to break boundaries on that.”

Haddad’s hiring helps the Pirates centralize an aspect of their coaching staff that had been spread out amongst various decision-makers. Shelton said he pushed for these responsibilities to come under the purview of one person, and Haddad -- who spent five years with the Yankees as an assistant coach and bullpen catcher -- will help lead run prevention efforts, especially in conjunction with the catching unit.

“It was something I felt strongly about -- as we transition, especially with a young staff, that we have someone specifically in that role,” Shelton said. “We searched for a really different skill set. What we found out about Radley from his old job is he was doing a lot of that work in conjunction with their pitching group, so it really fit well.”

Rabelo replaces Joey Cora as third-base coach, a position Cora had held since 2017 with the Pirates.

“One of the things that stood out with Rabs going over there is he’s done it for a long time in the Minor leagues, having managed in the Minor leagues,” Shelton said. “We have total trust that he’ll pay attention to making wise decisions, and he’ll also pay attention to the baserunning component of it.”

Other coaching notes

• Bullpen catcher and assistant coach Heberto Andrade, who had been with the club for nearly 20 years, has left the Pirates for a position with the Padres.

• Triple-A pitching coach Joel Hanrahan, who is seen as a future Major League coach, announced on Twitter he will be leaving the Pirates organization and pursuing other opportunities. He was named the Pirates’ Danny Murtaugh Coach of the Year last season.

• Last season’s Triple-A manager, Brian Esposito, also announced he will join the Padres organization.