Ken Macha is a former Major League Baseball player and manager. He played as a second baseman for the Pittsburgh Pirates, Montreal Expos, Toronto Blue Jays, and Oakland Athletics. Macha was known for his solid defense and ability to get on base. He had a career batting average of .263 and a fielding percentage of .983.

After retiring as a player, Macha became a coach and eventually a manager. He served as the bench coach for the Oakland Athletics before being hired as the manager of the Milwaukee Brewers in 2003. Macha led the Brewers to a 77-85 record in his first season as manager, but was fired after the team finished with a losing record in 2010.

Macha's managerial career also included stints with the Oakland Athletics and the Boston Red Sox. He was named the American League Manager of the Year in 2003 after leading the Athletics to a division title. Macha was known for his attention to detail and his ability to manage a bullpen effectively.

Overall, Ken Macha had a successful career in baseball as both a player and a manager. He was respected by his peers for his knowledge of the game and his ability to get the most out of his players. While he may not be a household name, Macha's contributions to the sport should not be overlooked.