Question: During the 2007 Oakland Athletics season, Ken Macha was replaced by a manager who now is the bench coach of what team?
Sentence (from "2007 Oakland Athletics season"): They were also without Ken Macha, their former manager who was fired after 4 seasons with the team and replaced by Bob Geren, as well as third-base coach Ron Washington, who accepted the managerial position of the Texas Rangers.
Relevant evidence: Yes