Buck Showalter and the Orioles finished last in the AL East with a 47–115 record this season.
Baltimore Orioles manager Buck Showalter and general manager Dan Duquette will not return next season, the team announced Wednesday.
"With the conclusion of the 2018 season, the club has decided to reorganize its Baseball Operations department under new executive management," Orioles spokesperson Greg Bader said in the team's statement.
He continued: "Under their leadership, prior to the 2018 season and for six consecutive years, the club delivered competitive teams playing meaningful baseball into September, achieved three postseason appearances and came within four games of a World Series appearance, and won more games than any other American League club during a period spanning five of those six enjoyable seasons."
Showalter and the Orioles posted a 47–115 record this season, which put them at the bottom of the American League East standings. Both Showalter and Duquette are currently completing contracts that conclude at the end of the month.
Showalter has been at the helm for Baltimore since 2010. In his nine seasons with the Orioles, he went 669–684.
The 62-year-old Showalter never made it to the Major Leagues as a player but has managed the New York Yankees, Arizona Diamondbacks and Texas Rangers in the past. His nine years with Baltimore is the longest amount of time that he has spent with one team.
He's a three-time American League Manager of the Year. He earned the honor with the Yankees in 1994, the Rangers in 2004 and the Orioles in 2014.