The Astros signed manager Brad Mills, third base coach Dave Clark, first base coach Bobby Meacham, bench coach Al Pedrique and bullpen coach Jamie Quirk to two-year contracts at the end of last season that run through the 2012 season. The franchise also holds an option for the 2013 season on Mills' contract.
Brocail has worked as interim pitching coach since June 14 when the Astros fired Brad Arnsberg. Brocail spent 15 seasons pitching in the majors before retiring in 2009. Barnett has worked for the Astros since Nov. 2010 after working as the team's minor league hitting coordinator.
The Astros finished with a major-league worst 56-106 record for the first 100-loss season in franchise history.